WO2019095447A1 - 一种具有远程评价功能的跟随教学方法 - Google Patents

一种具有远程评价功能的跟随教学方法 Download PDF

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Publication number
WO2019095447A1
WO2019095447A1 PCT/CN2017/114404 CN2017114404W WO2019095447A1 WO 2019095447 A1 WO2019095447 A1 WO 2019095447A1 CN 2017114404 W CN2017114404 W CN 2017114404W WO 2019095447 A1 WO2019095447 A1 WO 2019095447A1
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teaching
data
standard
recording
classroom
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PCT/CN2017/114404
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English (en)
French (fr)
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卢楷槟
卢鑫
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深圳市鹰硕技术有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/20—Education
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers

Definitions

  • the invention relates to the field of internet teaching technology, in particular to a follow-up teaching method with remote evaluation function based on an internet teaching platform.
  • CN101833882A (Publication Date September 15, 2010) discloses a course recording system for teaching, including a multimedia classroom module (such as a podium, a central control, a stand, a notebook, a projector, etc.), a classroom scene camera acquisition module, Automatic tracking detection module, recording workstation, B/S architecture on-demand module, editing workstation, recording system resource management module and external conditions.
  • a multimedia classroom module such as a podium, a central control, a stand, a notebook, a projector, etc.
  • a classroom scene camera acquisition module such as a podium, a central control, a stand, a notebook, a projector, etc.
  • Automatic tracking detection module such as a podium, a central control, a stand, a notebook, a projector, etc.
  • recording workstation such as a podium, a central control, a stand, a notebook, a projector, etc.
  • B/S architecture on-demand module such as a lecture station
  • editing workstation such as a
  • CN106355350A (Publication Date January 25, 2017) discloses a smart campus system, including a campus management subsystem 1 and a campus teaching subsystem 2, wherein the smart reading assessment subsystem can be based on the frequency of the received students entering and leaving the reading room. Time, reading the name and quantity of the book, analyzing and calculating the rankings and presenting the rankings on the cloud interactive electronic blackboard 108 to stimulate the students' enthusiasm for learning.
  • CN105306861A (Publication Date February 3, 2016) discloses a reliable teaching and recording method of the system, which separates the recording and classification of classified data, generates a unified time stamp for marking, and simpleizes the data to be encrypted. Segmentation, establish a correspondence table, obtain recording data separately according to needs, realize smooth data transmission, and use the local terminal client to organically use the data Combined, even part of the data can be played according to the needs of the client, and the problem of teaching and recording is systematically solved.
  • CN103295171A (Publication Date September 11, 2013) discloses an automatic teaching method for ST teaching based on intelligent recording and broadcasting system, which comprises an audio and video field collecting and recording system, a network transmission system and a remote playing system, comprising the following steps: Obtaining the switching mode of the audio and video field collection and recording and broadcasting system in the recording process; 2. Converting the switching mode and generating the xml file; 3. Defining the parameters of the xml file in the video source file for the behavior of the teacher and the student; Fourth, calculate the teacher's behavior percentage, student behavior percentage and conversion rate; Fifth, use the web interface to display the ST behavior map.
  • the invention can realize the teacher recording and broadcasting course, and the recording and broadcasting host converts the intelligent switching information of the video source position into the teacher behavior information sequence table and the student behavior information sequence table. After the video recording is completed, after the automatic encoding, Directly generate an intuitive ST histogram, calculate the conversion rate of this lesson and judge the type of teaching according to the norm.
  • CN106601052A (Publication Date, April 26, 2017) discloses an art teaching system including an artboard module, a video module, a voice module, a storage module and a main processor, characterized in that different users can be in different artboards.
  • Drawing on the module, the drawing board module includes an electronic screen, and the electronic screen is divided into a plurality of small screens; the user can record the painting process in real time through the video module; the user can explain the drawing process through the voice module.
  • the resource may also store the voice resource recorded in the voice module in real time; the resource storage module can store the art teaching courseware, the art teaching simulation test article, and other art work materials; the main processor can compare any two pieces that need to be compared. The paintings are compared and the quantitative conclusions are drawn.
  • CN106485964A (Publication Date March 08, 2017) discloses a method for recording and on-demand of classroom teaching, including the following steps: a course recording step for recording classroom teaching data, and according to the time sequence of the main points of the classroom explanation, Recording classroom teaching data for segmentation identification, forming segmentation marker classroom data corresponding to the lecture explanation points, establishing a corresponding association database of classroom explanation points and segmentation marker classroom data; course management steps for recording the recording classroom teaching data for problem correlation processing; course review steps for students to review on-demand online Review the recording of classroom teaching data, review the after-school review, and learn to consolidate the steps. After completing the course review, students will further consolidate the content of classroom teaching through online answering assignments, including classroom assignments or quizzes.
  • the technical problems to be solved by various teaching systems in the prior art mainly include the techniques of recording, online sharing and interactive learning in the teaching process, aiming to collect classroom teaching through the recording and broadcasting system, and transmit the collected teaching data through the network.
  • the classroom teaching can be reproduced in the student user client to achieve the purpose of network teaching.
  • what is disclosed in the prior art is the recording and sharing of the teaching process of the teacher.
  • the students can order these recorded teaching videos on-demand or remotely broadcast through the Internet, and the teaching resources can be shared by the teaching recording system. It is convenient for learners to review classroom teaching and improve their learning.
  • the inventors of this application have intensively implemented technical projects in the first-line teaching of primary and secondary schools, especially in the investigation of remote mountainous areas. They found that for the online teaching courses provided in the developed areas, students from other regions due to the teaching background and knowledge background. It is difficult to learn directly. Even if follow-up learning is carried out, the learning effect is relatively poor. It is necessary for local teachers to learn according to the online course, and then refer to the teaching method of the online teaching course and then combine the actual situation to carry out the actual teaching activities through the local classroom teaching method. Objectively speaking, the teaching subject and core strength of primary and secondary school education are still primary and secondary school teachers for a long time now and in the future.
  • the present invention is directed to the problems existing in the prior art discovered by the inventors.
  • On the Internet teaching platform through the teaching and recording system, following the teacher In the classroom teaching process, through the collection, analysis and evaluation of the data in advance, during and after the event, providing real-time analysis, guidance and assistance, so as to analyze and guide the entire follow-up classroom teaching, and further analyze the data. Sended to standard teachers, remote teachers perform remote evaluations, which helps to improve the efficiency of follow-up teaching and the effectiveness of teaching.
  • a follow-up teaching method having a remote evaluation function is provided, the method is based on an internet teaching platform, and the internet teaching platform has a recording and broadcasting system for classroom teaching recording, including The following steps that can be performed by a computer device:
  • the standard course forming step is used to collect the standard classroom teaching data of the standard teacher through the standard teaching recording and broadcasting system of the Internet teaching platform, and segment the standard classroom teaching data, for example, it is divided into a pre-class test stage and a class teaching. Stages and follow-up practice stages, each stage is identified by time identification information, and the time identification information is saved together with the classroom teaching data to constitute standard teaching recording and broadcasting data, thereby forming a standard teaching recording and broadcasting course;
  • S300 follow the teaching analysis step for post-analysis of the follow-up teaching and recording data, and perform segmentation comparison with the standard teaching recording data, including the recommended teaching time of each stage and the actual teaching time comparison, and the speech of each stage. Text information comparison, and the following teaching and recording courses and standard teaching recording courses are synchronized and displayed to follow teachers;
  • the standard teacher evaluation step is used to send the comparison result of the following teaching recording data and the standard teaching recording data to the standard teacher, and the standard teacher evaluates.
  • the step S100 specifically includes:
  • S110 A relational data construction step for performing knowledge points of the classroom syllabus of each course Dividing, using knowledge points as data items, based on data items, based on the comparison with the pre-class test exercises and the attribute information of the exercises in the classroom, establishing the relationship with the knowledge points as the associated points, thereby constructing the relationship database;
  • S120 standard teaching recording step, collecting standard classroom teaching data through the teaching recording device of the standard teaching recording and broadcasting system, and respectively acquiring image data, audio data, motion data by using image capturing equipment, audio collecting equipment and/or motion collecting equipment, and the data It can be saved in the form of data stream and time-coded by timestamp;
  • S130 Pre-class test analysis step. After the start of the classroom teaching, before the lecture stage, the students conduct basic knowledge test through the student terminal, analyze the test results in real time, and form pre-test test result analysis data;
  • S140 Practice the analysis steps in the classroom. Before the end of the classroom teaching, after the lecture period in the class, the students conduct a practice test through the student terminal, analyze the test results in real time, and form analysis data of the practice results.
  • S150 A voice recognition conversion step, configured to convert audio data of the classroom teaching data into standard voice text information by using a voice recognition technology.
  • the voice text information includes time stamp information of the audio data, so that the correspondence between the voice text and the audio data can be established based on the time stamp information, so that the voice text information can be performed in the form of subtitles when the standard teaching recording course is called back on-demand. display.
  • the knowledge point division includes three steps:
  • the first step is to divide the classroom syllabus into basic knowledge and new knowledge as a primary data item.
  • the second step further dividing the basic knowledge into a plurality of basic knowledge points, and further dividing the newly-recommitted knowledge into a plurality of newly-learned knowledge points as secondary data items;
  • the third step further improve the data structure of the relational database according to the relationship between the basic knowledge points and the newly granted knowledge points.
  • the step S200 specifically includes:
  • S210 a relational data invoking step, which is used to retrieve the relationship number when following the beginning of the classroom teaching According to the database, provide data support for the following steps;
  • S220 follows the teaching recording step, collect the following classroom teaching data by following the teaching recording device of the teaching recording and broadcasting system, and use the image collecting device, the audio collecting device and/or the motion collecting device to respectively collect image data, audio data, motion data, and the like. It can be saved in the form of data stream and time-coded by timestamp;
  • S230 Before the class test comparison step, after following the classroom teaching, the student conducts a basic knowledge test through the student terminal before the lecture stage, and analyzes the test result in real time to form pre-test test result analysis data, which will be described.
  • the pre-class test analysis results are compared with the pre-test test results of the standard course, and the follow-up teachers are provided with the students' knowledge of the basic knowledge points and the differences with the standard classroom students, and according to the difference, according to the knowledge of the relational database Point-related information, combined with the teaching time of the knowledge points in the standard classroom, giving advice on the teaching time of the knowledge points;
  • S240 Practice the analysis steps in the classroom. Before the end of the classroom teaching, after the lecture period in the class, the students conduct a practice test through the student terminal, analyze the test results in real time, and form the analysis data of the practice results.
  • the time prompt information is generated and displayed on the teacher terminal, so that it is convenient to follow the teacher to grasp the teaching progress in the class teaching.
  • the step S300 specifically includes:
  • S310 a voice recognition conversion step, configured to convert the audio data of the following teaching recording data into voice text information by using a voice recognition technology
  • S320 a text similarity analysis step, configured to compare the standard speech text information with the following speech text information to obtain a similarity coefficient
  • the split screen comparison display step is used to display the recorded follow-up teaching course and the standard teaching course to the following teacher in the form of double-window or multi-window on-screen display or multi-screen synchronous display, thereby realizing an intuitive comparison.
  • the step S330 further includes performing pre-test test analysis result comparison and suggesting teaching time The comparison with the actual teaching time, the comparison of the similarity between the phonetic text information and the standard phonetic text information, and/or the comparison of the test results.
  • the step S300 further includes:
  • S340 an improvement suggestion generating step, in the process of displaying the split screen comparison, according to the relationship relationship of the knowledge database based on the knowledge point, combined with the comparison result, giving evaluation information and improvement suggestions of each stage in the following teaching process .
  • the step S300 further includes:
  • ST i represents the suggested teaching time of the knowledge point i
  • PT i represents the actual teaching time of the knowledge point i
  • i 1, 2...n
  • n is a positive integer, which is used to indicate the number of knowledge points
  • ⁇ represents the i-th knowledge point.
  • E1 indicates the evaluation data for the follow-up teacher
  • E2 indicates the evaluation data for the standard teacher.
  • the evaluation is usually given by the student through the Internet teaching platform, and the two evaluation data adopt the same standard;
  • S1 means to follow the average score of each class in the classroom, and S2 means the average score of each class in the standard classroom;
  • the step S400 specifically includes: S401: sending the recommended teaching time of each stage and the actual teaching time comparison, the comparison of the voice text information of each stage, the following teaching recording course, etc. to the standard teacher;
  • S402 synchronously displaying the following teaching recording course and the standard teaching recording course to the standard teacher in synchronization with the on-screen display mode, and the standard teacher compares the above comparison result, and evaluates the following teaching recording course to form a remote evaluation result;
  • a computer apparatus includes a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor executes The method steps as described above can be implemented in the program.
  • a computer storage medium storing a program executable by a computer, which can implement the method steps as described above, is provided.
  • the invention relies on the internet teaching platform and takes the teaching recording and broadcasting system as the main means of realization.
  • a standard teaching recording and broadcasting course with segmentation features is formed.
  • follow the teacher to implement local follow-up teaching compare the test results of the basic knowledge of the students, compare the test results of the standard classrooms, combine the teaching time of the knowledge points in the standard courses, provide guidance for the follow-up teachers to give lectures, and implement the actual implementation.
  • the situation is recorded and compared.
  • the following teachings are displayed in the same screen with multiple windows or multiple screens. Standard teaching similarities and differences, and provide data support, including speech text similarity, generate improved suggestions, calculation follow-up, etc., so as to provide effective data support for follow-up teaching, help to follow the improvement of teaching efficiency, help improve Follow the effects of teaching.
  • FIG. 1 is a schematic structural diagram of an internet teaching platform of the present invention
  • Figure 2 is a schematic diagram showing the main steps of the follow-up teaching system of the present invention.
  • Figure 3 is a schematic diagram showing the sub-steps of the standard course forming step of the present invention.
  • Figure 4 is a schematic diagram showing the sub-steps of the follow-up teaching recording step of the present invention.
  • Figure 5 is a schematic illustration of the sub-steps of the follow-up teaching analysis step of the present invention.
  • the Internet teaching platform 100 includes a standard teaching recording and broadcasting system 101 and a follow-up teaching and recording system 102.
  • the standard teaching recording and broadcasting system 101 includes a standard teacher terminal 1011, a standard teaching recording device 1012, and a standard student terminal 1013.
  • the follow-up instructional recording system 102 includes a follow-up teacher terminal 1021, a follow-up teaching recording device 1022, and a follow-up student terminal 1023.
  • the standard teaching recording system 101 and the follow-up recording system 102 may also specifically include various image, sound, and operation action collecting devices.
  • the terminal of the present invention comprises: a processor, a network module, a control module, a display module and a smart operating system; the terminal may be provided with a plurality of data interfaces for connecting various extension devices and accessories through a data bus; the intelligent operation
  • the system includes Windows, Android and its improvements, iOS, on which applications can be installed and run to implement various applications, services and application stores/platforms under the intelligent operating system.
  • the terminal of the present invention can be connected to the internet through RJ45/Wi-Fi/Bluetooth/2G/3G/4G/G.hn/Zigbee/Z-ware/RFID connection, and connected to other terminals or other computers via the Internet. And devices, through 1394/USB/serial/SATA/SCSI/PCI-E/Thunderbolt/data card interface and other data interfaces or bus methods, through HDMI/YpbPr/SPDIF/AV/DVI/VGA/TRS/SCART/ Displayport and other audio and video interfaces and other connection methods to connect a variety of expansion equipment and accessories to form a conference / teaching equipment interactive system.
  • Sound capture control module and motion capture control module in software form, or via data
  • the sound capture control module and the motion capture control module in the form of on-board hardware implement voice control and shape control functions; display/projection modules, microphones, audio equipment and other audio and video equipment are connected through audio and video interfaces to realize display, projection, and Sound access, audio and video playback, and digital or analog audio and video input and output functions; connect camera, microphone, electronic whiteboard, and RFID reading device through data interface to realize image access, sound access, and use of electronic whiteboard And recording screen, RFID reading function, and access and control of mobile storage devices, digital devices and other devices through corresponding interfaces; through DLNA/IGRS technology and Internet technology, including multi-screen device control , interactive and screen features.
  • a processor is defined to include, but is not limited to, an instruction execution system such as a computer/processor based system, an application specific integrated circuit (ASIC), a computing device, or a non-transitory or non-transitory computer.
  • a readable storage medium acquires or acquires hardware and/or software systems that execute and execute instructions contained in a non-transitory storage medium or non-transitory computer readable storage medium.
  • the processor may also include any controller, state machine, microprocessor, internetwork-based entity, service or feature, or any other analog, digital, and/or mechanical implementation thereof.
  • the computer readable storage medium is defined to include, but is not limited to, any medium capable of containing, storing, or maintaining programs, information, and data.
  • the computer readable storage medium includes any of a number of physical media such as an electronic medium, a magnetic medium, an optical medium, an electromagnetic medium, or a semiconductor medium. More specific examples of suitable computer readable storage media and memory for use by terminals and servers include, but are not limited to, magnetic computer disks (such as floppy disks or hard drives), magnetic tape, random access memory (RAM), read only memory (ROM), Erasable Programmable Read Only Memory (EPROM), compact disc (CD) or digital video disc (DVD), Blu-ray memory, solid state drive (SSD), flash memory.
  • magnetic computer disks such as floppy disks or hard drives
  • RAM random access memory
  • ROM read only memory
  • EPROM Erasable Programmable Read Only Memory
  • CD compact disc
  • DVD digital video disc
  • Blu-ray memory solid state drive (SSD), flash memory.
  • the Internet may include a local area network and a wide area Internet, and may be a wired Internet or a wireless Internet, or any combination of these networks.
  • the Internet teaching platform has a classroom teaching recording function, including the following steps performed by the computer device: S100: standard course forming steps, S200: Follow the teaching recording step, S300: Follow the teaching analysis step.
  • S100 a standard course forming step for collecting standard classroom teaching data of a standard teacher through a standard teaching recording and broadcasting system of the Internet teaching platform, and segmenting the classroom teaching data, for example, It is divided into pre-class test stage, in-class teaching stage and queuing practice stage. Each stage is marked with time identification information. The time mark is saved together with standard classroom teaching data to form standard teaching record data, thus forming standard teaching. Recording course;
  • the internet teaching platform may be a variety of available internet teaching platforms that have access to the Internet and have interactive functions and have the ability to record the classroom teaching process.
  • Such Internet teaching platforms generally include a teacher terminal, a student terminal, a multimedia teaching device, a classroom teaching recording device, and a local or cloud server, and these devices communicate with each other through wired or wireless, local or wide-area Internet.
  • the standard teaching recording and broadcasting system can be connected with the internet teaching platform, and can respectively collect image data, audio data, motion data through image capturing equipment, audio collecting equipment, and/or operation motion collecting equipment (for example, teaching terminal operation)
  • Classroom teaching data such as action, electronic whiteboard operation, drawing operation and drawing operation data, etc., can also perform statistical analysis on other real-time data generated during the teaching process, and store and upload various data obtained. deal with.
  • the recorded data can be saved in a data stream to a local storage device, a server storage device of the Internet teaching platform, or a cloud storage device connected to the server, such as a disk storage array.
  • the so-called standard teacher refers to such a teacher.
  • the teaching and recording course of classroom teaching is used as a standard teaching recording course. It is followed by the teacher to learn reference or recommended to follow the teacher to learn reference. follow the teacher as the reference standard for imitating follow-up teaching. Perform local classroom instruction.
  • the standard teaching and recording course can be shared on the Internet through the Internet teaching platform, and users who log in to the teaching platform through the Internet can obtain downloading, browsing, and learning operations.
  • the segmentation process refers to that the classroom teaching process can be divided into a pre-test test phase, a lecture-in-class lecture phase, and a queuing practice phase, and the three phases generally have a logical relationship before and after the chronological order. These three phases are identified by time, such as a timestamp.
  • each stage of the three stages, especially the in-class teaching stage can be further divided into multiple sub-segments.
  • the lecture stage is divided into several lectures. Subsection.
  • a relational database with knowledge points as the associated points or ties is gradually established, so that the exercises in the pre-test stage, the teaching of the teaching points in the lectures, and the exercises in the classroom are established with each other.
  • the knowledge point is the key point or the relationship of the link, and the relationship is saved to the relational database.
  • segmentation identification differentiated identification
  • time identifier a time identifier
  • S200 follow the teaching recording step, and collect the follow-up classroom teaching data of the follow-up teacher through the following teaching recording and broadcasting system of the Internet teaching platform, perform real-time analysis on the pre-test test result data in the following classroom teaching data, and analyze the result of the real-time analysis with The corresponding data of the standard teaching recording data is compared, and the teaching time is provided for following the teaching stage of the teacher, and the recommended teaching time and the actual teaching time are recorded.
  • the suggested teaching time, the actual teaching time and the classroom teaching data are saved together to constitute the following teaching recording data, thereby forming a follow-up teaching recording course.
  • it may be stored separately or stored together with the teaching and recording data according to other data storage methods, such as time stamp identification for unified identification.
  • the recommended teaching time it is preferable to display on the screen of the following teacher terminal in a time prompt manner, so as to facilitate the follow-up teacher to reasonably grasp the teaching progress according to the time prompt.
  • the so-called follow-up teacher is a teacher who imitates or follows the standard teacher's instructional recording course to perform local classroom teaching.
  • the following instructional recording and recording course can also be shared on the Internet through the Internet teaching platform.
  • the follow-up teacher can also choose not to upload to the Internet teaching platform, or upload to the Internet teaching platform, but only for a certain range of students, such as the class. Or the students of the school can download, browse, study, etc., that is to say, according to the willingness of the followers, the method of following the instructional recording course can be shared.
  • the following teaching recording and broadcasting system may be the same as the standard teaching recording and broadcasting system in S100, or may be different, as long as it is guaranteed to obtain the same standard or resolution classroom recording data.
  • the priority is that the recording system used by standard teachers is used in conjunction with the recording system used by teachers.
  • the teacher's teaching and recording data can also be saved as a data stream to a local storage device, a server storage device, or a cloud storage device connected to the server, such as a disk storage array. Can be consistent with the standard teacher, no longer repeat them here.
  • S300 Follow the teaching analysis step for post-analysis of the follow-up teaching and recording data, and perform segmentation comparison with the standard teaching recording data, including the recommended teaching time of each stage and the actual teaching time comparison, and the speech of each stage.
  • the text information is compared and the following teaching and recording courses are synchronized with the standard teaching recording course to be displayed to the follow-up teacher.
  • the processing of the comparison may be performed by a local server, or the data may be submitted to the cloud for analysis and comparison by a dedicated cloud computing center, which may be a company providing commercial services.
  • all operations such as alignment and analysis are performed by a local server or computer device.
  • the standard teacher evaluation step is used to send the comparison result of the following teaching recording data and the standard teaching recording data to the standard teacher, and the standard teacher evaluates.
  • the step S400 specifically includes: S401: sending the recommendation teaching time of each stage and the actual teaching time comparison result, the comparison result of the voice text information of each stage, following the teaching recording course, and the like to the standard teacher;
  • S402 synchronously displaying the following teaching and recording course and the standard teaching recording and broadcasting course to the standard teacher in synchronization with the on-screen display mode, and the standard teacher compares the above-mentioned comparison result, and evaluates the following teaching recording and broadcasting course to form a remote evaluation result;
  • the S100 is a standard course forming step, and specifically includes: S110: relationship data construction step, S120: standard teaching recording step, S130: pre-school test analysis step, S140: classroom practice analysis step, S150: Speech recognition conversion step.
  • S110 a relationship data construction step, which is used to divide the knowledge syllabus of the classroom syllabus of each course, and use the knowledge points as data items, based on the data items, according to the exercises before the class test. Aligning with the attribute information of the exercises that are practiced in the classroom, establishing an association relationship with the knowledge points as the associated points, thereby constructing a relational database;
  • the knowledge point division includes three steps:
  • the first step is to divide the classroom syllabus into basic knowledge and new knowledge as a primary data item.
  • the second step further dividing the basic knowledge into a plurality of basic knowledge points, and further dividing the newly-recommitted knowledge into a plurality of newly-learned knowledge points as secondary data items;
  • the third step further improve the data structure of the relational database according to the relationship between the basic knowledge points and the newly granted knowledge points.
  • the relational database is independently stored as part of standard teaching recording data.
  • the course of standard teacher-executed classroom teaching here mainly refers to the process of teaching the course, including the teaching of basic knowledge (usually retrospective teaching) and the teaching of new knowledge, establishing knowledge or knowledge points and recording.
  • the time period is divided by time identification preferred time stamp information, and saved to the relational database.
  • the correspondence between the basic knowledge point and the standard recording data sub-period is further established, and the sub-period is a further subdivision of the time period.
  • the division of the time period or the sub-period may be manually clicked and confirmed by the standard teacher in the course, or may be divided according to the keyword search or manual distinction after the event.
  • S120 standard teaching recording step, collecting classroom teaching data through a teaching recording device of a standard teaching recording and broadcasting system, for example, using an image collecting device, an audio collecting device, and/or an action collecting device Collect image data, audio data, and action data separately, and the data may be separately saved in a data stream and time-coded by a time stamp;
  • S130 Pre-class test analysis step. After the start of the classroom teaching, before the lecture stage, the students conduct basic knowledge test through the student terminal, analyze the test results in real time, and form pre-test test result analysis data to understand the current students.
  • the relevant basic knowledge is preferably the mastery of the basic knowledge points, so that it is more targeted in the following lectures and is convenient for subsequent standard teaching.
  • test analysis data can be provided not only in real time, for example, to standard teachers, but also separately, preferably, as part of standard teaching recording data, and saved together.
  • S140 Practice the analysis steps in the classroom. Before the end of the classroom teaching, after the lecture period in the class, the students conduct a practice test through the student terminal, analyze the test results in real time, and form analysis data of the practice results to understand the students.
  • the mastery of new knowledge is preferably the mastery of new knowledge points, providing technical support for teachers to self-analyze the teaching process, and facilitating teachers to understand the teaching effect.
  • the analysis data of the classroom exercise can be provided not only in real time, for example, to a standard teacher, but also separately, preferably, as a component of standard teaching recording data, and saved together.
  • a voice recognition conversion step configured to convert audio data of the classroom teaching data into voice text information by using a voice recognition technology.
  • the voice text information includes time identification information of the original audio data, such as preferred time stamp information, so that the correspondence between the voice text and the audio data can be established based on the time identification information.
  • the voice text information with the time identification information is saved as part of the standard teaching recording data, and is displayed on the terminal device in the form of subtitles during the on-demand playback.
  • the data item in the relationship data construction step includes a correspondence between the knowledge or the knowledge point and the recording data period (based on the time identifier, preferably the time stamp information is divided), and the voice text information is divided and established. Correspondence with knowledge or knowledge points, and as part of the standard teaching recording data, save together.
  • the S200 following the teaching recording step, specifically: S210: relationship number According to the calling step, S220: follow the teaching recording step, S230: pre-test test comparison step, S240: practice analysis step.
  • S210 a relational data invoking step, is used to retrieve the relational database when following the beginning of the classroom teaching, and provide data support for the following steps, which may be followed before the start of the classroom teaching, or may be retrieved at the beginning, as long as it is not The delay can follow the execution of the teaching process.
  • S220 following the teaching recording step, collecting the following classroom teaching data by following the teaching recording device of the teaching recording and broadcasting system, for example, using image capturing equipment, audio collecting equipment, and/or motion collecting equipment to separately collect image data, audio data, and motion data, These data can be saved in the form of data streams and time-stamped by timestamps.
  • These recording devices preferably remain the same as the corresponding device models in S120, and preferably in the classroom, such as the orientation of the image capture device, the distance of the audio capture device from the lecturer, the settings of the electronic whiteboard, and the like.
  • the current suggestion following teaching time is given according to the standard teaching time.
  • the time prompt information is generated and displayed on the teacher terminal, so that it is convenient to follow the teacher to grasp the teaching progress in the class teaching.
  • S240 Practice the analysis steps in the classroom. Before the end of the classroom teaching, after the lecture period in the class, the students conduct a practice test through the student terminal, analyze the test results in real time, and form analysis data of the practice results to understand the students' new The content of the content is taught to facilitate the standard teachers to understand the teaching effect. The exercises in the classroom are consistent with the standard teaching process.
  • the analysis data of the classroom exercises can be saved separately or as ancillary data and teaching records.
  • the broadcast data is saved together.
  • the S300 following the teaching analysis step, specifically includes: S310: voice recognition conversion step, S320: text similarity analysis step, S330: split screen comparison display step, S340: improvement suggestion generation step, S350: Follow-up calculation steps.
  • a voice recognition conversion step configured to convert the audio data of the following teaching recording data into voice text information by using a voice recognition technology.
  • the voice text information includes time identification information of the original audio data, such as a preferred time stamp. Information, so that the correspondence between the voice text and the audio data can be established based on the time identification information.
  • the voice text information with the time identification information is saved as a component of the following teaching recording data, and is displayed on the terminal device in the form of subtitles during the on-demand playback.
  • the voice text information is divided according to the correspondence between the knowledge or the knowledge point and the recording data period (based on the time stamp is preferably the time stamp information), and the correspondence relationship with the knowledge or the knowledge point is established, and the teaching is followed. Record the components of the data and save them together.
  • S320 a text similarity analysis step, configured to perform similarity comparison analysis on the standard phonetic text information and the following phonetic text information to obtain a similarity coefficient.
  • the setting of the similarity coefficient is given on the basis of a large number of statistical data.
  • the selection of the similarity coefficient is within this range.
  • the teaching can be kept in the class without missing the knowledge points, and the independence and freedom of following the teacher's expression can be maintained.
  • Sexuality the similarity coefficient is too high, which will give the parrot a similar and completely imitative teaching. It is not conducive to following the teacher's growth and stimulating self-awareness. If the similarity coefficient is too low, it may face the problem of insufficient teaching points.
  • the speech text segmentation comparison based on the knowledge points is performed according to the correspondence between the speech text information determined by the relational database and the knowledge or the knowledge points, so as to more accurately determine the similarity coefficients of the two speech texts.
  • the split screen comparison display step is used to display the recorded follow-up teaching course and the standard teaching course to the following teacher in the form of double-window or multi-window on-screen display or multi-screen synchronous display, thereby realizing an intuitive comparison.
  • the step S330 further includes performing comparison of the pre-school test analysis results, the recommended teaching time and the actual teaching time comparison, the similarity comparison between the following speech text information and the standard speech text information, and/or the comparison of the test results.
  • each stage and sub-segment such as the statistical analysis of the pre-test test stage, and based on the knowledge point suggestion teaching time and the actual teaching time comparison, the speech of each stage and sub-segment The similarity coefficient of the text, the comparison of the test results of the practice.
  • S340 an improvement suggestion generating step, in the process of displaying the split screen comparison, according to the relationship relationship of the knowledge database based on the knowledge point, combined with the comparison result, giving evaluation information and improvement suggestions of each stage in the following teaching process .
  • the evaluation information and the improvement suggestion are selected in an optional manner by the follow-up teacher according to the self-evaluation combined with the analysis result.
  • the follow-up teacher can input the evaluation information and the improvement suggestion after viewing the comparison.
  • the evaluation information and the improvement suggestion confirmed by the following teacher or the input are saved to the following teaching recording data as a part of the following recorded data through the association relationship with each of the stages and sub-segments.
  • S350 The following degree calculation step is used to calculate the following coefficient F n of each follow-up teaching, and the multiple following coefficients F n in a certain period are made into a follow-up coefficient change curve and displayed to the following teacher.
  • the calculation of the following coefficient is mainly based on the correlation data of the standard teacher as the basis of the original comparison, and is obtained by the following formula, wherein the relevant data used may include: following the teacher's suggestion time ST i and the actual teaching time PT for the knowledge point i i , the evaluation data E1 for the follow-up teacher and the evaluation data E2 for the standard teacher, the average score S1 for each class in the classroom, and the average score S2 for the standard classroom for each class.
  • the following coefficient can reflect to some extent the current length of the follow-up teacher, the acceptance of the student and the improvement of the teaching effect.
  • ST i represents the suggested teaching time of the knowledge point i
  • PT i represents the actual teaching time of the knowledge point i
  • i 1, 2...n
  • n is a positive integer, which is used to indicate the number of knowledge points
  • ⁇ represents the i-th knowledge point.
  • E1 indicates the evaluation data for the follow-up teacher
  • E2 indicates the evaluation data for the standard teacher.
  • the evaluation is usually given by the student through the Internet teaching platform, and the two evaluation data adopt the same standard;
  • S1 means to follow the average score of each class in the classroom, and S2 means the average score of each class in the standard classroom;
  • the above value range can reflect the core of following teaching, and can also take into account the student's reflection and actual effect, and can better balance the relationship of these factors.

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Abstract

本发明提供一种具有远程评价功能的跟随教学方法，所述方法基于互联网教学平台，所述平台具有录播系统，通过录制标准教师的课堂教学，并对录制的课堂教学数据进行标准化分段处理后，形成标准教学录播课程，跟随教师在学习标准教学录播课程之后，可以模仿标准教师执行本地课堂教学，同样通过录播系统进行录制，使用本发明的方法，通过对采集的各种数据的关系构建、统计、分析和比对等处理，可以实现对跟随教师的教学过程进行事前、事中和事后的记录和指导，进一步还可以将分析数据发送给标准教师，由标准教师执行远程评价，从而帮助跟随教师有效完成本地课堂教学。

Description

一种具有远程评价功能的跟随教学方法 技术领域
本发明涉及互联网教学技术领域，特别是涉及一种基于互联网教学平台的具有远程评价功能的跟随教学方法。
背景技术
近些年来，互联网教学技术蓬勃发展，涌现出一大批各式各样的互联网教学平台。这些互联网教学平台借助于互联网技术，使得教学资源的分享更加方便，他们主要将课堂教学、讲座、会议等现场的音视频内容，甚至集成演示的内容制作成多媒体文体，存储于连接了互联网的教学服务器上，通过点播和直播技术，用户可以随时随地通过互联网在线或回顾这些教学内容。借助于日益普及的网络，特别是移动互联网，互联网用户能够方便的开展网上教学、远程教学、课堂直播等。然而，这些互联网教学平台主要关注的是，教学过程的录制以及教师与学生的互动，比如现有技术中的这些教学录播系统或教学平台：
CN101833882A(公开日2010年9月15日)公开了一种用于教学的课程录制系统，包括多媒体教室模块(如讲台、中控、展台、笔记本、投影机等等)、教室场景摄像机采集模块、自动跟踪探测模块、录播工作站、B/S架构点播模块、编辑工作站、录播系统资源管理模块以及外部条件等。
CN106355350A(公开日2017年1月25日)公开了一种智慧校园系统，包括校园管理子系统1和校园教学子系统2，其中，智慧阅读考核子系统可以根据接收到的学生进出阅览室的频率、时间、阅读书籍名称和数量等数据，进行分析计算并排名后将排行榜呈现在云互动电子黑板108上，激发学生的学习热情。
CN105306861A(公开日2016年2月3日)公开了一种系统的可靠的教学录播方法，从分类数据的录制和分类单独存储，生成统一的时间戳进行标记，到对需要加密的数据进行简单分割，建立对应关系表，根据需要单独获取录播数据，实现流畅的数据传送，而使用本地的终端上客户端将这些数据有机 组合起来，甚至可以根据客户端的需要仅仅获取部分数据进行播放，系统性的解决了教学录播的问题。
CN103295171A(公开日2013年9月11日)公开了一种基于智能录播系统的S-T教学自动分析方法，包括音视频现场采集和录播系统，网络传输系统以及远程播放系统，包括如下步骤：一、获取音视频现场采集和录播系统在录制过程信号源的切换方式；二、对切换方式进行转换处理并生成xml文件；三、定义xml文件的视频源文件中参数为教师和学生的行为；四、计算教师行为百分比、学生行为百分比和转化率；五、利用网页界面展示S-T行为图。本发明能实现教师边录播课程，录播主机通过对视频源机位的智能化切换信息转化成教师行为信息序列表和学生行为信息序列表，视频录制完成后，经过自动化编码后，便可直接生成直观的S-T直方图，计算出本课例的转化率及依据常模判断出教学类型。
CN106601052A(公开日2017年04月26日)公开了一种美术教学系统，包括画板模块、视频模块、语音模块、存储模块和主处理器，其特征在于，不同的用户可在不同的所述画板模块上进行绘画，所述画板模块包括电子屏幕，且所述电子屏幕划分为若干个小屏幕；用户可通过视频模块将其绘画过程进行实时录制；用户可通过语音模块将其绘画过程的解说进行实时录制；所述存储模块包括实时会话存储模块和资源存储模块，所述实时绘画存储模块能够存储用户在所述画板模块上呈现的绘画过程和绘画作品，也可以存储视频模块中实时录制的视频资源，也可以存储语音模块中实时录制的语音资源；所述资源存储模块能存储了美术教学课件、美术教学模拟试题、其他美术作品资料；所述主处理器能够对任意两幅需要进行比较的绘画作品进行对比，得出量化的结论。
CN106485964A(公开日2017年03月08日)公开了一种课堂教学的录制和点播的方法，包括以下步骤：课程录制步骤，用于录制课堂教学数据，并根据课堂讲解要点的时间顺序，对所述录制课堂教学数据进行分段标识，形成与所述课堂讲解要点对应的分段标记课堂数据，建立课堂讲解要点与分段标记课堂数据的对应关联数据库；课程管理步骤，用于对录制的所述课堂教学数据进行问题关联处理；课程回顾步骤，用于学生通过在线回顾点播的方 式，回顾所述录制课堂教学数据，进行课后复习回顾；学习巩固步骤，在完成课程回顾之后，学生通过在线答题作业，包括随堂作业或者随堂测试，进一步巩固学习课堂教学的内容。
可见，现有技术中各种教学系统所要解决的技术问题主要在于，教学过程的录制、在线分享和交互学习等方面的技术，旨在通过录播系统采集课堂教学，通过网络传输采集的教学数据，可以在学生用户客户端重现课堂教学，实现网络教学的目的。具体的，现有技术中公开的是对教师教学过程的录播以及共享，学生可以点播这些录制好的教学视频，或者通过互联网进行远程教学直播，通过教学录播系统可以实现教学资源的网络共享，方便学习者回顾课堂教学，提升学习效果。
本申请的发明人在深入中小学教学一线实施技术项目，特别是深入边远山区调研时发现，对于教育发达地区提供的网络教学课程，由于教学背景以及知识背景的等方面的原因，其他地区的学生很难直接进行学习，即使进行跟随学习，学习效果也比较差，需要本地教师先根据网络课程进行学习，然后参照网络教学课程的教学方式再结合实际情况，通过本地课堂教学方式开展实际教学活动。客观来说，中小学学校教育的教学主体和核心力量在现在和未来相当长时间内肯定还是中小学教师，可以预见未来各种现代化教学手段将越来越多的被采纳，但是主要教学活动还将是课堂授课的方式。目前来看，对于中小学学校教育，各种网络教学系统主要起到课堂教学实时协助、过程延伸等作用，不太可能完全替代课堂教学。一线教师，特别是渴望提升教学水平的欠发达地区教师，存在这样的需求，欠发达地区教师(本地教师)在对教育发达地区提供的网络教学课程进行跟随式教学的过程中，也就是类似模仿式教学的过程中，希望借助能够对跟随式教学过程实时分析和协助的技术或者软件系统，对本地教师的跟随式教学过程提供技术支持，从而可以有助于本地教师教学水平的提高，有助于改进本地教学的教学质量和教学效果。
通过对现有技术的检索和分析，发明人还未发现现有技术中存在基于互联网教学平台的跟随教学方案。本发明正是针对发明人发现的现有技术中存在的问题，在互联网教学平台之上，通过教学录播系统，在跟随教师开展跟 随式课堂教学过程中，通过对有关数据的事先、事中和事后的采集、分析和评价，提供实时分析、指导和帮助，从而对整个跟随式课堂教学进行分析指导，进一步还可以将分析数据发送给标准教师，由标准教师执行远程评价，从而有助于跟随式教学效率和教学效果的提升。
发明内容
为了解决上述技术问题，根据本发明的一个方面，提供一种具有远程评价功能的跟随教学方法，所述方法基于互联网教学平台，所述互联网教学平台具有用于课堂教学录制的录播系统，包括可由计算机设备执行的以下步骤：
S100：标准课程形成步骤，用于通过互联网教学平台的标准教学录播系统采集标准教师的标准课堂教学数据，对标准课堂教学数据进行分段处理，比如，分为课前测试阶段、课中讲授阶段和随堂练习阶段，各阶段以时间标识信息进行标识区分，所述时间标识信息与课堂教学数据一起保存构成标准教学录播数据，由此形成标准教学录播课程；
S200：跟随教学录制步骤，用于通过互联网教学平台的跟随教学录播系统采集跟随教师的跟随课堂教学数据，对跟随课堂教学数据的课前测试结果数据进行实时分析，将实时分析的结果与标准教学录播数据的对应数据进行比对，为跟随教师的课中讲授阶段提供建议讲授时间，并且记录建议讲授时间与实际讲授时间，所述建议讲授时间、实际讲授时间与课堂教学数据一起保存构成跟随教学录播数据，由此形成跟随教学录播课程；
S300：跟随教学分析步骤，用于对跟随教学录播数据进行事后分析，并与标准教学录播数据进行分段比对，包括各阶段的建议讲授时间和实际讲授时间比对、各阶段的语音文本信息比对，并将跟随教学录播课程与标准教学录播课程同步回放显示给跟随教师；
S400：标准教师评价步骤，用于将跟随教学录播数据与标准教学录播数据的比对结果，发送给标准教师，由标准教师进行评价。
所述步骤S100具体包括：
S110：关系数据构建步骤，用于将每堂课程的课堂教学大纲进行知识点 划分，将知识点作为数据条目，以数据条目为基础，根据与课前测试的习题和随堂练习的习题的属性信息的比对，建立以知识点为关联点的关联关系，由此构建关系数据库；
S120：标准教学录制步骤，通过标准教学录播系统的教学录制设备采集标准课堂教学数据，使用图像采集设备、音频采集设备和/或动作采集设备分别采集图像数据、音频数据、动作数据，这些数据可以分别以数据流的方式进行保存，并通过时间戳进行时间标识；
S130：课前测试分析步骤，在课堂教学开始之后，课中讲授阶段之前，学生通过学生终端进行基础知识测试，对测试结果进行实时分析，形成课前测试结果分析数据；
S140：随堂练习分析步骤，在课堂教学结束之前，课中讲授阶段之后，学生通过学生终端进行随堂练习测试，对测试结果进行实时分析，形成随堂练习结果分析数据；
S150：语音识别转换步骤，用于将课堂教学数据的音频数据通过语音识别技术转换成标准语音文本信息。
所述语音文本信息包括音频数据的时间戳信息，从而可以基于时间戳信息建立语音文本与音频数据的对应关系，使得在标准教学录播课程被点播回访时，语音文本信息可以以字幕的方式进行显示。
所述知识点划分包括三步：
第一步，将课堂教学大纲划分为基础知识和新授知识，作为一级数据条目，
第二步：将所述基础知识进一步划分为若干基础知识点，将所述新授知识进一步划分为若干新授知识点，作为二级数据条目；
第三步：根据基础知识点和新授知识点的关联关系，进一步完善关系数据库的数据结构。
所述步骤S200具体包括：
S210：关系数据调用步骤，用于在跟随课堂教学开始时调取所述关系数 据库，为下面的步骤提供数据支持；
S220：跟随教学录制步骤，通过跟随教学录播系统的教学录制设备采集跟随课堂教学数据，使用图像采集设备、音频采集设备和/或动作采集设备分别采集图像数据、音频数据、动作数据，这些数据可以分别以数据流的方式进行保存，并通过时间戳进行时间标识；
S230：课前测试比对步骤，在跟随课堂教学开始之后，跟随课中讲授阶段之前，学生通过学生终端进行基础知识测试，对测试结果进行实时分析，形成课前测试结果分析数据，将所述课前测试分析结果与标准课程的课前测试分析结果进行比对，向跟随教师提供学生对于基础知识点的掌握情况和与标准课堂学生的差异，并且根据差异情况，根据所述关系数据库的知识点关联信息，结合标准课堂上对于知识点的讲授时间，给出关于知识点的建议讲授时间；
S240：随堂练习分析步骤，在课堂教学结束之前，课中讲授阶段之后，学生通过学生终端进行随堂练习测试，对测试结果进行实时分析，形成随堂练习结果分析数据。
所述课前测试的习题和随堂练习的习题与标准教学中对应习题一致。
在给出建议讲授时间之后，生成时间提示信息，在教师终端上进行展示，便于跟随教师在课中讲授中掌握教学进度。
所述步骤S300具体包括：
S310：语音识别转换步骤，用于将所述跟随教学录播数据的音频数据通过语音识别技术转换成语音文本信息；
S320：文本相似分析步骤，用于将标准语音文本信息与跟随语音文本信息进行相似度比对分析，获得相似系数；
S330：分屏比对展示步骤，用于以双窗口或者多窗口同屏展示、或者多屏同步显示的方式向跟随教师同时展示录制的跟随教学课程与标准教学课程，从而实现直观的比对。
所述步骤S330进一步包括，进行课前测试分析结果对比、建议讲授时间 和实际讲授时间比对、跟随语音文本信息与标准语音文本信息的相似度对比和/或随堂练习测试结果的比对。
所述步骤S300进一步包括：
S340：改进建议生成步骤，用于在分屏比对展示过程中，根据所述关系数据库基于知识点的关联关系，结合上述比对结果，给出跟随教学过程中各个阶段的评价信息及改进建议。
所述步骤S300进一步包括：
S350：跟随度计算步骤，用于计算每次跟随教学的跟随系数Fn，将一定周期内的多次跟随系数Fn做成跟随系数变化曲线，展示给跟随教师，跟随系数计算公式：
Figure PCTCN2017114404-appb-000001
其中，
STi表示知识点i的建议讲授时间，PTi表示知识点i的实际讲授时间，i＝1,2…n，n是正整数，用于表示知识点的数量，δ表示第i个知识点的权重系数，其中δ1+...+δi＝1；
E1表示对于跟随教师讲授的评价数据，E2表示对于标准教师讲授的评价数据，评价通常由学生通过互联网教学平台给出，两个评价数据采用同样的标准；
S1表示跟随课堂每次随堂练习平均得分，S2表示标准课堂每次随堂练习平均得分；
α、β、γ作为平衡系数，α+β+γ＝1，α取值0.30-0.50，β取值0.10-0.30，γ取值0.20-0.40。
所述步骤S400具体包括：S401：将各阶段的建议讲授时间和实际讲授时间比对、各阶段的语音文本信息比对结果、跟随教学录播课程等发送给标准 教师；
S402：以同步同屏显示的方式将跟随教学录播课程与标准教学录播课程同步展示给标准教师，标准教师对照上述比对结果，对于跟随教学录播课程进行评价，形成远程评价结果；
S403：将远程评价结果发送给跟随教师。为了解决上述技术问题，根据本发明的另一个方面，提供一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时可以实现如上所述的方法步骤。
为了解决上述技术问题，根据本发明的再一个方面，提供一种计算机存储介质，其存储了可以被计算机执行的程序，执行所述程序时可以实现如上所述的方法步骤。
本发明以互联网教学平台作为依托，以教学录播系统为主要实现手段，通过对课堂教学过程的标准化和模块化分段处理，形成具有分段特征的标准教学录播课程，在此基础上，跟随教师实施本地跟随教学，通过对于学生基础知识掌握情况的测试，对比标准课堂的测试结果，结合标准课程上对于知识点的讲授时间，为跟随教师提供建议讲授时间的指导，并且对实际的执行情况进行记录和比对，为了进一步体现跟随教学的特质，在完成跟随课堂教学，形成跟随教学录播课程后，以同屏多窗口或多屏同时展示的方式，向跟随教师对比展示跟随教学和标准教学的异同，并且提供数据支持，包括语音文本相似度、生成改进的建议、计算跟随度等，从而可以为跟随教学提供有效的数据支持，有助于跟随教学效率的提升，有助于改进跟随教学的效果。
本发明附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实施例或示例中了解到。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性 劳动的前提下，还可以根据本发明实施例的内容和这些附图获得其他的附图。
图1是本发明的互联网教学平台的架构示意图；
图2是本发明的跟随教学系统的主要步骤示意图；
图3是本发明的标准课程形成步骤的子步骤示意图；
图4是本发明的跟随教学录制步骤的子步骤示意图；和
图5是本发明的跟随教学分析步骤的子步骤示意图。
具体实施方式
以下将结合附图，对本发明的具体实施方式进行进一步详细的描述。
图1是本发明的互联网教学平台的架构示意图。如图1所示，互联网教学平台100，包括标准教学录播系统101、跟随教学录播系统102。标准教学录播系统101包括：标准教师终端1011、标准教学录制设备1012、标准学生终端1013。跟随教学录播系统102包括：跟随教师终端1021、跟随教学录制设备1022、跟随学生终端1023。所述标准教学录播系统101和跟随教学录播系102还可以具体包括各种图像、声音和操作动作采集设备等。
本发明的终端包括：处理器、网络模块、控制模块、显示模块以及智能操作系统；所述终端上可以设有通过数据总线连接各种拓展类设备和配件的多种数据接口；所述智能操作系统包括Windows、Android及其改进、iOS，在其上可以安装、运行应用软件，实现在智能操作系统下的各种应用软件、服务和应用程序商店/平台的功能。
本发明的终端可以通过RJ45/Wi-Fi/蓝牙/2G/3G/4G/G.hn/Zigbee/Z-ware/RFID等连接方式连接到互联网络，并借助互联网连接到其它的终端或其它电脑及设备，通过1394/USB/串行/SATA/SCSI/PCI-E/Thunderbolt/数据卡接口等多种数据接口或者总线方式，通过HDMI/YpbPr/SPDIF/AV/DVI/VGA/TRS/SCART/Displayport等音视频接口等连接方式，来连接各种拓展类设备和配件，组成了一个会议/教学设备互动系统。带有软件形式的声音捕捉控制模块和动作捕捉控制模块，或通过数据 总线板载硬件形式的声音捕捉控制模块和动作捕捉控制模块，来实现声控和形控功能；通过音视频接口连接显示/投影模块、麦克风、音响设备和其它音视频设备，来实现显示、投影、声音接入、音视频播放，以及数字或模拟的音视频输入和输出功能；通过数据接口连接摄像头、麦克风、电子白板、RFID读取设备，实现影像接入、声音接入、电子白板的使用控制和录屏，RFID读取功能，并通过相应的接口可接入和管控移动存储设备、数字设备和其它设备；通过DLNA/IGRS技术和互联网络技术，来实现的包括多屏设备之间的操控、互动和甩屏等功能。
在本发明中，处理器定义为包括但不限于：指令执行系统，如基于计算机/处理器的系统、专用集成电路(ASIC)、计算设备、或能够从非暂时性存储介质或非暂时性计算机可读存储介质取得或获取逻辑并执行非暂时性存储介质或非暂时性计算机可读存储介质中包含的指令的硬件和/或软件系统。所述处理器还可以包括任意控制器，状态机，微处理器，基于互联网络的实体、服务或特征，或它们的任意其它模拟的、数字的和/或机械的实现方式。
在本发明中，所述计算机可读存储介质定义为包括但不限于：能够包含、存储或保持程序、信息及数据的任意介质。计算机可读存储介质包括许多物理介质中的任一种，如电子介质、磁性介质、光介质、电磁介质或半导体介质。合适计算机可读存储介质以及终端和服务器使用的存储器的更具体示例包括但不限于：磁性计算机盘(如软盘或硬驱)、磁带、随机存取存储器(RAM)、只读存储器(ROM)、可擦除可编程只读存储器(EPROM)、光盘(CD)或数字视频光盘(DVD)、蓝光存储器、固态硬盘(SSD)、闪存。
在本发明中，互联网可以包括局域网和广域互联网，可以是有线互联网，也可以是无线互联网，或者这些网络的任意组合。
如图2所示，根据本发明的基于互联网教学平台的跟随教学方法的具体实施例，所述互联网教学平台具有课堂教学录制功能，包括由计算机设备执行的以下步骤：S100：标准课程形成步骤、S200：跟随教学录制步骤、S300：跟随教学分析步骤。
S100：标准课程形成步骤，用于通过互联网教学平台的标准教学录播系统采集标准教师的标准课堂教学数据，对课堂教学数据进行分段处理，比如 分为课前测试阶段、课中讲授阶段和随堂练习阶段，各阶段以时间标识信息进行标识区分，所述时间标识与标准课堂教学数据一起保存构成标准教学录播数据，由此形成标准教学录播课程；
所述互联网教学平台可以是可以接入互联网的具有交互功能的并且具有对课堂教学过程进行录制功能的各种可用互联网教学平台。这样的互联网教学平台一般包括，教师终端、学生终端、多媒体教学设备、课堂教学录制设备以及本地或云端服务器，这些设备之间通过有线或无线，局域或广域等互联网进行通信连接。
所述标准教学录播系统可以与互联网教学平台通信连接，可以通过图像采集设备、音频采集设备和/或操作动作采集设备等录制设备分别采集图像数据、音频数据、动作数据(比如，教学终端操作动作、电子白板操作动作、画图板的做图动作等操作动作数据)等课堂教学数据，还可以对教学过程产生的其他实时数据进行统计分析，以及对所获得的各种数据进行存储、上传等处理。
优选的，这些录播数据可以分别以数据流的方式保存至本地存储设备、互联网教学平台的服务器存储设备或者与服务器连接的云端存储设备，比如磁盘存储阵列等。
所谓标准教师是指这样的教师，其课堂教学的教学录播课程作为标准教学录播课程，被跟随教师学习参考或者推荐给跟随教师学习参考，跟随教师将以此作为模仿式跟随教学的参考标准执行本地课堂教学。
所述标准教学录播课程可以通过互联网教学平台共享于网络之上，通过互联网登录教学平台的用户可以获得，进行下载、浏览、学习等操作。
所述分段处理是指可以将所述课堂教学过程分为课前测试阶段、课中讲授阶段和随堂练习阶段，这三个阶段一般具有时间顺序上的前后逻辑关系。这三个阶段以时间标识，比如时间戳，进行分段标识。
在这三个阶段的基础上，还可以对课堂教学过程继续进行类似的细分分段处理，而且这三个阶段的每个阶段，特别是课中讲授阶段还可以进一步划分为多个子段，比如根据讲授的不同知识点，将课中讲授阶段分为若干讲授 子段。
在分阶段和分子段的过程中，逐渐建立以知识点为关联点或纽带的关系数据库，使得课前测试阶段的习题、课中讲授阶段的知识点讲授、随堂练习的习题彼此之间建立以知识点为关键点或纽带的关联关系，并且将这种关联关系保存至关系数据库。
这些阶段和子段的划分，优选以时间标识进行分段标识(区分标识)，以知识点为联系纽带，一般并不需要把数据切割分段。
S200：跟随教学录制步骤，用于通过互联网教学平台的跟随教学录播系统采集跟随教师的跟随课堂教学数据，对跟随课堂教学数据中的课前测试结果数据进行实时分析，将实时分析的结果与标准教学录播数据的对应数据进行比对，为跟随教师的课中讲授阶段提供建议讲授时间，并且记录建议讲授时间与实际讲授时间。所述建议讲授时间、实际讲授时间与随堂课堂教学数据一起保存构成跟随教学录播数据，由此形成跟随教学录播课程。对于教学或者跟随过程中可能涉及的其他数据，可以按照其他数据的存储方式，通过比如时间戳标识进行统一标识之后，进行单独存储或者与教学录播数据一起进行存储。
对于建议讲授时间，优选的是，可以以时间提示的方式显示于跟随教师终端的屏幕上，便于跟随教师根据时间提示合理掌握教学进度。
所谓跟随教师是模仿或者跟随所述标准教师的教学录播课程执行本地课堂教学的教师。所述跟随教学录播课程也可以通过互联网教学平台共享于网络之上，跟随教师也可以选择不上传到互联网教学平台，或者上传到互联网教学平台，但是只供一定范围内的学生比如本班的或者本校的学生下载、浏览、学习等，也就是说，可以根据跟随教师的意愿采用分级共享跟随教学录播课程的方式。
所述跟随教学录播系统可以是与S100中的标准教学录播系统相同的，也可以是不同的，只要保证能够获得相同标准的或者分辨率的课堂录播数据即可。
优先的是，标准教师使用的录播系统与跟随教师使用的录播系统采用相 同型号的设备，并且特别优选的是，这些设备在教室中的安装方式保持一致，从而保持录播系统采集的数据在技术参数上保持一致。
跟随教师的教学录播数据，同样可以分别以数据流的方式保存至本地存储设备、服务器的存储设备或者与服务器连接的云端存储设备，比如磁盘存储阵列等。可以与标准教师保持一致，在此不再赘述。
S300：跟随教学分析步骤，用于对跟随教学录播数据进行事后分析，并与标准教学录播数据进行分段比对，包括各阶段的建议讲授时间和实际讲授时间比对、各阶段的语音文本信息比对，并将跟随教学录播课程与标准教学录播课程同步回放显示给跟随教师。
所述比对的处理，可以由本地服务器执行，也可以将数据提交到云端由专门的云计算中心执行分析和比对，这些云计算中心可以是提供商业服务的公司。
可选的，所有的比对和分析等运算均由本地服务器或者计算机设备执行。
S400：标准教师评价步骤，用于将跟随教学录播数据与标准教学录播数据的比对结果，发送给标准教师，由标准教师进行评价。
所述步骤S400具体包括：S401：将各阶段的建议讲授时间和实际讲授时间比对结果、各阶段的语音文本信息比对结果、跟随教学录播课程等发送给标准教师；
S402：以同步同屏显示的方式将跟随教学录播课程与标准教学录播课程同步展示给标准教师，标准教师对照上述比对结果，对跟随教学录播课程进行评价，形成远程评价结果；
S403：将远程评价结果发送给跟随教师。
如图3所示，所述S100：标准课程形成步骤，具体包括：S110：关系数据构建步骤、S120：标准教学录制步骤、S130：课前测试分析步骤、S140：随堂练习分析步骤、S150：语音识别转换步骤。
S110：关系数据构建步骤，用于将每堂课程的课堂教学大纲进行知识点划分，将知识点作为数据条目，以数据条目为基础，根据与课前测试的习题 和随堂练习的习题的属性信息的比对，建立以知识点为关联点的关联关系，由此构建关系数据库；
所述知识点划分包括三步：
第一步，将课堂教学大纲划分为基础知识和新授知识，作为一级数据条目，
第二步：将所述基础知识进一步划分为若干基础知识点，将所述新授知识进一步划分为若干新授知识点，作为二级数据条目；
第三步：根据基础知识点和新授知识点的关联关系，进一步完善关系数据库的数据结构。
优选的，所述关系数据库作为标准教学录播数据的组成部分进行独立保存。
优选的，在标准教师执行课堂教学过程中，这里主要是指进行课程讲授的过程中，包括对于基础知识的讲授(通常是回顾式讲授)和新授知识的讲授，建立知识或者知识点与录播数据时段的对应关系，所述时段以时间标识优选时间戳信息进行划分，并且保存至所述关系数据库。
比如，进行基础知识的课中讲授中，建立基础知识与标准录播数据时段的对应关系。
优选的，进一步建立基础知识点与标准录播数据子时段的对应关系，所述子时段是对所述时段的进一步细分。所述时段或者子时段的划分可以由标准教师在课中讲授中进行手动点击确认，也可以根据事后的关键词检索或者人工区分进行划分。
也就是，在标准教学录制过程完成后，可以形成以知识或者知识点为关联标识的“课堂教学目标数据条目-课前测试的习题-课中讲授分段数据-随堂练习的习题”的关系数据库，使得可以对于标准教学录播课程进行片段划分，并建立前后关联的对应关系。
S120：标准教学录制步骤，通过标准教学录播系统的教学录制设备采集课堂教学数据，比如，使用图像采集设备、音频采集设备和/或动作采集设备 分别采集图像数据、音频数据、动作数据，这些数据可以分别以数据流的方式进行保存，并通过时间戳进行时间标识；
S130：课前测试分析步骤，在课堂教学开始之后，课中讲授阶段之前，学生通过学生终端进行基础知识测试，对测试结果进行实时分析，形成课前测试结果分析数据，用以了解当前学生对于相关基础知识，优选为基础知识点的掌握情况，从而在后面的课中讲授中，更加有针对性，方便后续开展标准教学。
所述测试分析数据，不但可以实时提供，比如展示给标准教师，也可以单独保存，优选的，作为标准教学录播数据的组成部分，一起进行保存。
S140：随堂练习分析步骤，在课堂教学结束之前，课中讲授阶段之后，学生通过学生终端进行随堂练习测试，对测试结果进行实时分析，形成随堂练习结果分析数据，用以了解学生对于新授知识的掌握情况，优选为新授知识点的掌握情况，为教师自我分析教学过程提供技术支持，方便教师了解教学效果。
所述随堂练习分析数据，不但可以实时提供比如展示给标准教师，也可以单独保存，优选的，作为标准教学录播数据的组成部分，一起进行保存。
S150：语音识别转换步骤，用于将课堂教学数据的音频数据通过语音识别技术转换成语音文本信息。优选的，所述语音文本信息包括原音频数据的时间标识信息比如优选时间戳信息，从而可以基于时间标识信息建立语音文本与音频数据的对应关系。
优选的，将带有时间标识信息的语音文本信息作为标准教学录播数据的组成部分，一起进行保存，并且在点播回放时，以字幕的形式显示于终端设备上。
优选的，根据S110：关系数据构建步骤中的所述数据条目包括知识或者知识点与录播数据时段(基于时间标识优选为时间戳信息划分)的对应关系，对语音文本信息进行划分，并建立与知识或知识点的对应关系，并作为标准教学录播数据的组成部分，一起进行保存。
如图4所示，所述S200：跟随教学录制步骤，具体包括：S210：关系数 据调用步骤、S220：跟随教学录制步骤、S230：课前测试比对步骤、S240：随堂练习分析步骤。
S210：关系数据调用步骤，用于在跟随课堂教学开始时调取所述关系数据库，为下面的步骤提供数据支持，可以跟随课堂教学开始之前调取，也可以在开始之时调取，只要不耽误跟随教学过程的执行即可。
S220：跟随教学录制步骤，通过跟随教学录播系统的教学录制设备采集跟随课堂教学数据，比如，使用图像采集设备、音频采集设备和/或动作采集设备分别采集图像数据、音频数据、动作数据，这些数据可以分别以数据流的方式进行保存，并通过时间戳进行时间标识。
这些录制设备优选与S120中的对应设备型号保持相同，并且优选在教室的安装方式，比如图像采集设备的方位、音频采集设备与授课者的距离、电子白板的设置等也相同或者相近。
S230：课前测试比对步骤，在跟随课堂教学开始之后，跟随课中讲授阶段之前，学生通过学生终端进行基础知识测试，对测试结果进行实时分析，形成课前测试结果分析数据，将所述课前测试分析结果与标准课程的课前测试分析结果进行比对，向跟随教师提供学生对于基础知识点的掌握情况和与标准课堂学生的差异，并且根据差异情况，根据所述关系数据库的知识点关联信息，结合标准课堂上对于知识点的讲授时间，给出关于知识点的建议讲授时间。
优选的，根据基础知识点与新授内容的关联权重，根据标准讲授时间给出当前的建议跟随讲授时间。
优选的，生成时间提示信息，在教师终端上进行展示，便于跟随教师在课中讲授中掌握教学进度。
S240：随堂练习分析步骤，在课堂教学结束之前，课中讲授阶段之后，学生通过学生终端进行随堂练习测试，对测试结果进行实时分析，形成随堂练习结果分析数据，以了解学生对于新授内容的掌握情况，以方便标准教师了解教学效果。所述随堂练习的习题与标准教学过程中一致。
所述随堂练习分析数据可以进行单独保存，或者作为附属数据与教学录 播数据一起进行保存。
如图5所示，所述S300：跟随教学分析步骤，具体包括：S310：语音识别转换步骤、S320：文本相似分析步骤、S330：分屏比对展示步骤、S340：改进建议生成步骤、S350：跟随度计算步骤。
S310：语音识别转换步骤，用于将所述跟随教学录播数据的音频数据通过语音识别技术转换成语音文本信息，优选的，所述语音文本信息包括原音频数据的时间标识信息比如优选时间戳信息，从而可以基于时间标识信息建立语音文本与音频数据的对应关系。
优选的，将带有时间标识信息的语音文本信息作为跟随教学录播数据的组成部分，一起进行保存，并且在点播回放时，以字幕的形式显示于终端设备上。
优选的，根据知识或者知识点与录播数据时段(基于时间标识优选为时间戳信息划分)的对应关系，对语音文本信息进行划分，并建立与知识或知识点的对应关系，并作为跟随教学录播数据的组成部分，一起进行保存。
S320：文本相似分析步骤，用于将标准语音文本信息与跟随语音文本信息进行相似度比对分析，获得相似系数。
对于经过语音识别转换获得的标准教师的语音文本和跟随教师的语音文本，由于他们是围绕同一个主题进行的课程授课，除了教师表达习惯不同以外，对于课程讲授的知识点的有关内容是不变的，通过对于两名教师就同一主题授课之后的语音文本进行相似度比对，可以有助于找到两名教师之间在语言使用方面的差异，尽管这种语言使用的差异并不能直接代表水平的差异，但是一般经验认为，作为标准教师，其语言运用能力相对更好，因此将两者进行比对，如果相似度较高，说明跟随教师的语音运用能力在提升，但是如果跟随教师一字不差的完全按照标准教师的方式进行讲课，只是重复标准教师的授课过程，则又面临消极模仿的可能，所以相似度要适度，偏差太大说明两个人的差异太大，偏差太小说明两个人没有实质差异，缺少了个人创造和特点。
具体的文本相似度算法，现有技术有很多种，比如学术论文防抄袭的比 对技术等。采用不同的算法，得到的相似系数会略有差异，但是相似系数不宜太低或太高，对于优选的相似系数在0.20至0.68之间。
相似系数的设定，是在大量统计数据的基础上给出的，选择相似系数在这个范围内，通常既可以保持课中讲授不会遗漏知识点，又能保持跟随教师表述的独立性和自由性，相似系数太高会给人鹦鹉学舌式的近似完全模仿式教学，不利于跟随教师的成长和激发自我意识，相似系数太低可能面临对知识点讲授不足的问题。
优选的是，根据关系数据库确定的语音文本信息与知识或知识点的对应关系，进行基于知识点的语音文本分段比对，以更加准确的确定两个语音文本的相似系数。
S330：分屏比对展示步骤，用于以双窗口或者多窗口同屏展示、或者多屏同步显示的方式向跟随教师同时展示录制的跟随教学课程与标准教学课程，从而实现直观的比对。所述步骤S330进一步包括，进行课前测试分析结果对比、建议讲授时间和实际讲授时间比对、跟随语音文本信息与标准语音文本信息的相似度对比和/或随堂练习测试结果的比对。
具体包括每个阶段和子段的相关分析数据比对，比如课前测试阶段的统计分析情况比对，并且基于此给出的知识点建议讲授时间和实际讲授时间比对，各个阶段和子段的语音文本的相似系数，随堂练习测试结果的比对等。
S340：改进建议生成步骤，用于在分屏比对展示过程中，根据所述关系数据库基于知识点的关联关系，结合上述比对结果，给出跟随教学过程中各个阶段的评价信息及改进建议。
优选的，评价信息及改进建议是以选项的方式，由跟随教师根据自我的评价结合所述分析结果进行选择的。
优选的，跟随教师在观看比对之后，可以输入评价信息及改进建议。
优选的，将经由跟随教师确认的或者输入的评价信息及改进建议，通过与所述每个阶段和子段的关联关系，作为跟随录播数据的一部分，保存至跟随教学录播数据中。
S350：跟随度计算步骤，用于计算每次跟随教学的跟随系数Fn，将一定 周期内的多次跟随系数Fn做成跟随系数变化曲线，展示给跟随教师。
跟随系数的计算主要是以标准教师的相关数据作为原始比对基础，通过以下公式计算获得的，其中采用的相关数据可以包括：跟随教师对于知识点i的建议讲授时间STi与实际讲授时间PTi、对于跟随教师讲授的评价数据E1与对于标准教师讲授的评价数据E2、跟随课堂每次随堂练习平均得分S1与标准课堂每次随堂练习平均得分S2。跟随系数可以一定程度上反映当前跟随教师的成长度、学生的接受度和教学效果的改进度。
跟随系数计算公式：
Figure PCTCN2017114404-appb-000002
其中，
STi表示知识点i的建议讲授时间，PTi表示知识点i的实际讲授时间，i＝1,2…n，n是正整数，用于表示知识点的数量，δ表示第i个知识点的权重系数，其中δ1+...+δi＝1；
E1表示对于跟随教师讲授的评价数据，E2表示对于标准教师讲授的评价数据，评价通常由学生通过互联网教学平台给出，两个评价数据采用同样的标准；
S1表示跟随课堂每次随堂练习平均得分，S2表示标准课堂每次随堂练习平均得分；
α、β、γ作为平衡系数，α+β+γ＝1，可以根据实际需要进行设定,经过大量的数据统计分析，优选的是，α取值0.30-0.50，β取值0.10-0.30，γ取值0.20-0.40。对于跟随式教学，上述取值范围可以体现跟随教学这个核心，又能兼顾学生反映和实际效果，能够比较好的平衡这几个因素的关系。
以上介绍了本发明的较佳实施方式，旨在使得本发明的精神更加清楚和便于理解，并不是为了限制本发明，凡在本发明的精神和原则之内，所做的修改、替换、改进，均应包含在本发明所附的权利要求概括的保护范围之内。
工业实用性
使用本发明的方法，通过对采集的各种数据的关系构建、统计、分析和比对等处理，可以实现对跟随教师的教学过程进行事前、事中和事后的记录和指导，进一步还可以将分析数据发送给标准教师，由标准教师执行远程评价，从而帮助跟随教师有效完成本地课堂教学。

Claims (14)

  1. 一种具有远程评价功能的跟随教学方法，所述方法基于互联网教学平台，所述互联网教学平台具有用于课堂教学录制的录播系统，包括可由计算机设备执行的以下步骤：
    S100：标准课程形成步骤，用于通过互联网教学平台的标准教学录播系统采集标准教师的标准课堂教学数据，对标准课堂教学数据进行分段处理，比如，分为课前测试阶段、课中讲授阶段和随堂练习阶段，各阶段以时间标识信息进行标识区分，所述时间标识信息与课堂教学数据一起保存构成标准教学录播数据，由此形成标准教学录播课程；
    S200：跟随教学录制步骤，用于通过互联网教学平台的跟随教学录播系统采集跟随教师的跟随课堂教学数据，对跟随课堂教学数据的课前测试结果数据进行实时分析，将实时分析的结果与标准教学录播数据的对应数据进行比对，为跟随教师的课中讲授阶段提供建议讲授时间，并且记录建议讲授时间与实际讲授时间，所述建议讲授时间、实际讲授时间与课堂教学数据一起保存构成跟随教学录播数据，由此形成跟随教学录播课程；
    S300：跟随教学分析步骤，用于对跟随教学录播数据进行事后分析，并与标准教学录播数据进行分段比对，包括各阶段的建议讲授时间和实际讲授时间比对、各阶段的语音文本信息比对，并将跟随教学录播课程与标准教学录播课程同步回放显示给跟随教师；
    S400：标准教师评价步骤，用于将跟随教学录播数据与标准教学录播数据的比对结果，发送给标准教师，由标准教师进行评价。
  2. 根据权利要求1的方法，其特征在于，
    所述步骤S100具体包括：
    S110：关系数据构建步骤，用于将每堂课程的课堂教学大纲进行知识点划分，将知识点作为数据条目，以数据条目为基础，根据与课前测试的习题和随堂练习的习题的属性信息的比对，建立以知识点为关联点的关联关系，由此构建关系数据库；
    S120：标准教学录制步骤，通过标准教学录播系统的教学录制设备采集标准课堂教学数据，可使用图像采集设备、音频采集设备和/或动作采集设备分别采集图像数据、音频数据、动作数据，这些数据可以分别以数据流的方式进行保存，并通过时间戳进行时间标识；
    S130：课前测试分析步骤，在课堂教学开始之后，课中讲授阶段之前，学生通过学生终端进行基础知识测试，对测试结果进行实时分析，形成课前测试结果分析数据；
    S140：随堂练习分析步骤，在课堂教学结束之前，课中讲授阶段之后，学生通过学生终端进行随堂练习测试，对测试结果进行实时分析，形成随堂练习结果分析数据；
    S150：语音识别转换步骤，用于将课堂教学数据的音频数据通过语音识别技术转换成标准语音文本信息。
  3. 根据权利要求2的方法，其特征在于，
    所述语音文本信息包括音频数据的时间戳信息，从而可以基于时间戳信息建立语音文本与音频数据的对应关系，使得在标准教学录播课程被点播回访时，语音文本信息可以以字幕的方式进行显示。
  4. 根据权利要求2的方法，其特征在于，
    所述知识点划分包括三步：
    第一步，将课堂教学大纲划分为基础知识和新授知识，作为一级数据条目，
    第二步：将所述基础知识进一步划分为若干基础知识点，将所述新授知识进一步划分为若干新授知识点，作为二级数据条目；
    第三步：根据基础知识点和新授知识点的关联关系，进一步完善关系数据库的数据结构。
  5. 根据权利要求2的方法，其特征在于，
    所述步骤S200具体包括：
    S210：关系数据调用步骤，用于在跟随课堂教学开始时调取所述关系数 据库，为下面的步骤提供数据支持；
    S220：跟随教学录制步骤，通过跟随教学录播系统的教学录制设备采集跟随课堂教学数据，比如，使用图像采集设备、音频采集设备和/或动作采集设备分别采集图像数据、音频数据、动作数据，这些数据可以分别以数据流的方式进行保存，并通过时间戳进行时间标识；
    S230：课前测试比对步骤，在跟随课堂教学开始之后，跟随课中讲授阶段之前，学生通过学生终端进行基础知识测试，对测试结果进行实时分析，形成课前测试结果分析数据，将所述课前测试分析结果与标准课程的课前测试分析结果进行比对，向跟随教师提供学生对于基础知识点的掌握情况和与标准课堂学生的差异，并且根据差异情况，根据所述关系数据库的知识点关联信息，结合标准课堂上对于知识点的讲授时间，给出关于知识点的建议讲授时间；
    S240：随堂练习分析步骤，在课堂教学结束之前，课中讲授阶段之后，学生通过学生终端进行随堂练习测试，对测试结果进行实时分析，形成随堂练习结果分析数据。
  6. 根据权利要求5的方法，其特征在于，
    所述课前测试的习题和随堂练习的习题与标准教学中对应习题一致。
  7. 根据权利要求5的方法，其特征在于，
    在给出建议讲授时间之后，生成时间提示信息，在教师终端上进行展示，便于跟随教师在课中讲授中掌握教学进度。
  8. 根据权利要求2的方法，其特征在于，
    所述步骤S300具体包括：
    S310：语音识别转换步骤，用于将所述跟随教学录播数据的音频数据通过语音识别技术转换成语音文本信息；
    S320：文本相似分析步骤，用于将标准语音文本信息与跟随语音文本信息进行相似度比对分析，获得相似系数；
    S330：分屏比对展示步骤，用于以双窗口或者多窗口同屏展示、或者多 屏同步显示的方式向跟随教师同时展示录制的跟随教学课程与标准教学课程，从而实现直观的比对。
  9. 根据权利要求8的方法，其特征在于，
    所述步骤S330进一步包括，进行课前测试分析结果对比、建议讲授时间和实际讲授时间比对、跟随语音文本信息与标准语音文本信息的相似度对比和/或随堂练习测试结果的比对。
  10. 根据权利要求9的方法，其特征在于，
    所述步骤S300进一步包括：
    S340：改进建议生成步骤，用于在分屏比对展示过程中，根据所述关系数据库基于知识点的关联关系，结合上述比对结果，给出跟随教学过程中各个阶段的评价信息及改进建议。
  11. 根据权利要求10的方法，其特征在于，
    所述步骤S300进一步包括：
    S350：跟随度计算步骤，用于计算每次跟随教学的跟随系数Fn，将一定周期内的多次跟随系数Fn做成跟随系数变化曲线，展示给跟随教师，跟随系数计算公式：
    Figure PCTCN2017114404-appb-100001
    其中，
    STi表示知识点i的建议讲授时间，PTi表示知识点i的实际讲授时间，i＝1,2…n，n是正整数，用于表示知识点的数量，δ表示第i个知识点的权重系数，其中δ1+...+δi＝1；
    E1表示对于跟随教师讲授的评价数据，E2表示对于标准教师讲授的评价数据，评价通常由学生通过互联网教学平台给出，两个评价数据采用同样的标准；
    S1表示跟随课堂每次随堂练习平均得分，S2表示标准课堂每次随堂练习平均得分；
    α、β、γ作为平衡系数，α+β+γ＝1，α取值0.30-0.50，β取值0.10-0.30，γ取值0.20-0.40。
  12. 根据权利要求11的方法，其特征在于，
    所述步骤S400具体包括：S401：将各阶段的建议讲授时间和实际讲授时间比对、各阶段的语音文本信息比对结果、跟随教学录播课程等发送给标准教师；
    S402：以同步同屏显示的方式将跟随教学录播课程与标准教学录播课程同步展示给标准教师，标准教师对照上述比对结果，对于跟随教学录播课程进行评价，形成远程评价结果；
    S403：将远程评价结果发送给跟随教师。
  13. 一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时可以实现如权利要求1-11中任一项的方法步骤。
  14. 一种计算机存储介质，其存储了可以被计算机执行的程序，执行所述程序时可以实现如权利要求1-11中任一项的步骤。
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