CN112331003B - Exercise generation method and system based on differential teaching - Google Patents
Exercise generation method and system based on differential teaching Download PDFInfo
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- CN112331003B CN112331003B CN202110011705.3A CN202110011705A CN112331003B CN 112331003 B CN112331003 B CN 112331003B CN 202110011705 A CN202110011705 A CN 202110011705A CN 112331003 B CN112331003 B CN 112331003B
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- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
- G09B7/02—Electrically-operated teaching apparatus or devices working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student
- G09B7/04—Electrically-operated teaching apparatus or devices working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student characterised by modifying the teaching programme in response to a wrong answer, e.g. repeating the question, supplying a further explanation
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Abstract
The invention discloses a method and a system for generating exercises based on differential teaching. The method comprises the following steps: the exercise characters meeting the individual requirements of the student are selected according to the personal information of the student and are processed by the exercise generator to form a batch of exercises in various forms. The student answers the exercises, the pupil information in the process of answering the exercises by the aid of the camera is collected, the average time of entering the state of concentration when the student answers various types of exercises is calculated according to the change of the pupil diameter, and therefore the fact that which type of exercises can enable the student to concentrate on attention at the stage is judged. The problem generator adjusts the proportion of the most appropriate type of problem up when generating the next batch of problems according to the conclusion. Compared with the existing paper exercise book or exercise question generation method, the method can monitor the state of the student in the process of answering the questions in real time, and can adjust the exercise form in time according to the existing state of the student so that the student can always obtain the exercise which is most suitable for the student.
Description
Technical Field
The invention relates to the technical field of computer differentiation aided teaching analysis systems, in particular to a problem generation method and system based on differentiation teaching.
Background
The learning ability and the learning type of each student are different and are mainly classified into three categories, namely a visual type, an auditory type and an kinesthetic type. Wherein, the visual students like to feel the classroom atmosphere in a picture form at a short distance; the hearing type students receive information more easily through audio, but are also easily interfered by other information; kinaesthesia students are more difficult to sit up for a long time and are more active relatively. Each student receives the same information, but each student responds differently. In the face of different types of students, the existing teaching system is difficult to realize individualized teaching according to different persons, and great troubles are brought to a trustee and teachers.
Every student has a learning method which best accords with the habit of the student, and the learning efficiency of the student can be improved only by different teaching according to different people. In the existing teaching mode, differentiation teaching is not paid attention to, and sufficient resources do not support the differentiation teaching, so that all students are on the same course and do the same test questions, and the learning efficiency is difficult to guarantee. However, the receptivity of each student to different learning forms is greatly different, some students are used to practice in the form of character exercises, some students are good at receiving knowledge in the form of voice, some students prefer to acquire knowledge by influencing media, and the like. In particular, in the aspect of exercises, everyone uses an exercise book printed uniformly, all exercises are displayed in a character form, and are too single and tedious, so that students can feel fatigue easily, thereby reducing the attention and influencing the learning efficiency. Different students have different fitness to the problem of different forms in different stages and different environment, to the problem of the form that oneself can accept more, the student often can concentrate attention on faster and solve a problem to, the problem form that the student adapts to still can change along with time, and the problem formation method that has now on the market can't follow student's fitness and carry out initiative form transformation, therefore is difficult to let the student keep the state of high-efficient study for a long time.
Disclosure of Invention
The invention mainly aims to provide a problem generation method based on differential teaching, and aims to solve the problem that the problem of single problem form cannot improve the attention of students.
In order to achieve the purpose, the problem generation method based on differential teaching provided by the invention is applied to a problem generation system based on differential teaching; the problem generating system based on the differential teaching comprises a main control computer and student terminals; the main control computer comprises a question bank and a question generator; the trainee terminal comprises an image processor;
the method for generating the exercises based on the differential teaching comprises the following steps:
the exercise generator extracts exercise characters from the exercise library in batch according to the student information;
the exercise generator processes the exercise characters, randomly forms a batch of exercises in different expression forms, and presents the exercises through the student terminal;
the student terminal collects the answering information of each exercise and pupil images of students in the answering process; wherein the answer information comprises an answer starting and ending time point;
the image processor analyzes the answer information and the pupil images and forms a corresponding sequence of exercise expression forms and the attention state of the student;
and the main control computer adjusts the proportion of the exercises in various expression forms in the next round of exercises according to the corresponding sequence.
Preferably, the step of extracting exercise characters in batches from the exercise library by the exercise generator according to the student information includes:
the main control computer divides the exercise characters into a plurality of content types and respectively inputs the content types into the sub exercise libraries corresponding to the content types of the exercise libraries;
the main control computer collects student information through the student terminal and marks the types of the students according to the student information, wherein the types of the students correspond to the content types of the sub-exercise libraries one by one;
the problem generator extracts the problem words from the sub-problem library corresponding to the type of the student.
Preferably, the step of the master control computer collecting trainee information through the trainee terminal and marking the type of the trainee according to the trainee information includes:
the student acquires the student information input by the student through the student terminal and transmits the student information to the main control computer, wherein the student information comprises grade, subject score, exercise score and membership information;
the main control computer divides the students into current period students and current period students according to the information whether the students are at the present state or not;
the main control computer collects the student information of the current student to form a current student information base, and divides the current student into a plurality of standard types according to the student information of the current student;
the main control computer collects the student information of the current-stage student to form a current-stage student information base, compares the student information of the current-stage student with the standard type, and marks the type of the current-stage student according to a comparison result.
Preferably, the step of processing the exercise characters by the exercise generator, randomly forming a batch of exercises with different expression forms, and presenting the exercises through the student terminal comprises:
the exercise generator randomly adds expression forms to the exercise characters extracted in batches to form a batch of exercises;
the main control computer sends the exercises to the student terminal, and the student terminal displays the exercises through a display screen and/or a player.
Preferably, the step of the student terminal collecting the answer information of each exercise and the pupil image of the student in the answering process includes:
the camera of the student terminal shoots pupil images of the student in the whole process and stores the pupil images in the image processor;
the timer of the student terminal respectively records the time points of starting and ending the display of the exercises in the student terminal and sends the time points of starting and ending the response to the image processor;
the image processor marks the time point on a time axis of the pupil image and cuts the pupil image into image segments according to the mark;
the image processor collects the pupil diameter sequence and the corresponding time sequence in the image segment and generates a pupil variation curve with respect to time;
and the image processor sends the change curve to the main control computer.
Preferably, the image processor analyzes the answer information and the pupil images and forms a corresponding sequence of problem expression forms and the attention state of the student, and the method comprises the following steps:
the main control computer obtains the duration T1 from the image starting time to the pupil diameter minimum time in the image segments, and obtains the expression form information of the exercises corresponding to the image segments;
the main control computer calculates to obtain the corresponding expression formAverage value of time length T1
；
The main control computer acquires the expression form information and the average value
Form the expression form and the average value
The corresponding sequence of (a).
Preferably, the step of the master control computer adjusting the proportion of the exercises in various expression forms in the next round of exercises according to the corresponding sequence comprises:
the main control computer is used for calculating the expression form and the average value
By mean value of
Arranging the representations in ascending order;
the problem generator will average the shortest
The proportion of the exercises of the corresponding expression forms in the next batch of test questions is adjusted to be the preset proportion.
Preferably, the preset proportion is 60-80%.
Preferably, the presentation forms include at least two of a text form, an audio form, a video form, a fill-in-space form, a selection form, a question-and-answer form, a dictation form, an action expression form, and a networked competition form.
In addition, in order to achieve the purpose, the invention also provides a problem generating system based on differential teaching, which applies any one of the steps of the method; the problem generating system based on the differential teaching comprises a main control computer and student terminals; the main control computer comprises a question bank and a question generator; the trainee terminal includes an image processor.
In the technical scheme of the invention, firstly, exercise characters meeting the individual requirements of students are selected from an exercise library according to the personal information of each student, and are processed by an exercise generator, different expression forms are given to the exercise characters, and a batch of exercises in various forms are formed. The student answers the batch of exercises through the student terminal, and at the moment, the pupil information in the exercise answering process of the student is collected through the camera at the student terminal, and the average time of the student entering the state of concentration when answering various types of exercises can be calculated according to the change of the pupil diameter when the student answers different types of exercises, so that the student can be more attentive in the stage by judging which form of exercise. And the exercise generator adjusts the proportion of the most suitable exercise type up according to the conclusion when generating the next batch of exercises so as to improve the attention of the student in answering the exercises. Compared with the existing paper exercise book or exercise question generation method, the exercise question generation method based on the differential teaching can monitor the state of the student in the process of answering the questions in real time, and timely adjust the exercise question form according to the existing state of the student so that the student can always obtain the exercise most suitable for the student, and the student can keep the state of concentrated attention for a long time in the process of answering the questions to the greatest extent.
Drawings
Fig. 1 is a schematic flow chart of a problem generation method based on differentiation teaching according to the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a method for generating exercises based on differential teaching is applied to an exercise generating system based on differential teaching; the problem generating system based on the differential teaching comprises a main control computer and student terminals; the main control computer comprises a question bank and a question generator; the trainee terminal comprises an image processor;
the method for generating the exercises based on the differential teaching comprises the following steps:
s10, the problem generator extracts the problem words in batch from the problem library according to the student information;
s20, the problem generator processes the problem words, randomly forms a batch of problems with different expression forms, and presents the problems through the student terminal;
s30, the student terminal collects the answering information of each exercise and the pupil image of the student in the answering process; wherein the answer information comprises an answer starting and ending time point;
s40, the image processor analyzes the answer information and the pupil images and forms a corresponding sequence of the exercise expression form and the attention state of the student;
and S50, the main control computer adjusts the proportion of the exercises in various expression forms in the next round of exercises according to the corresponding sequence.
In the technical scheme of the invention, firstly, exercise characters meeting the individual requirements of students are selected from an exercise library according to the personal information of each student, and are processed by an exercise generator, different expression forms are given to the exercise characters, and a batch of exercises in various forms are formed. The student answers the batch of exercises through the student terminal, and at the moment, the pupil information in the exercise answering process of the student is collected through the camera at the student terminal, and the average time of the student entering the state of concentration when answering various types of exercises can be calculated according to the change of the pupil diameter when the student answers different types of exercises, so that the student can be more attentive in the stage by judging which form of exercise. And the exercise generator adjusts the proportion of the most suitable exercise type up according to the conclusion when generating the next batch of exercises so as to improve the attention of the student in answering the exercises. Compared with the existing paper exercise book or exercise question generation method, the exercise question generation method based on the differential teaching can monitor the state of the student in the process of answering the questions in real time, and timely adjust the exercise question form according to the existing state of the student so that the student can always obtain the exercise most suitable for the student, and the student can keep the state of concentrated attention for a long time in the process of answering the questions to the greatest extent.
Moreover, the exercise generation system based on the differential teaching further comprises a teacher terminal; the teacher terminal comprises an input device, and teachers can input exercise characters into the question bank or modify and delete the exercise characters in the question bank through the input device.
Preferably, the method for generating exercises based on differential teaching further comprises the following steps:
and S60, sending the answering condition to the teacher terminal and forming an answer analysis report.
Preferably, the step of sending the answer condition to the teacher terminal and forming an answer analysis report includes:
s61, when answering is finished, the main control computer sends at least one answering condition of the total answering amount, the total answering time, the total answering accuracy, the student answers of all the questions and the answering time of all the questions to the teacher terminal;
and S62, the teacher terminal carries out classified statistics on the answer condition sent by the main control computer, and compares the statistical result with the current statistical result and draws to form a change trend graph.
The teacher can clearly know the learning state of each student at the current stage and the change trend of the learning state through the change trend graph so as to adjust the teaching scheme to help the students to learn more effectively.
Preferably, the step of extracting corresponding exercise characters from the exercise library according to the student information includes:
s11, dividing the exercise characters into a plurality of content types by the main control computer, and respectively inputting the content types into the sub exercise libraries corresponding to the exercise libraries;
s12, the main control computer collects student information through the student terminal and marks the types of the students according to the student information, wherein the types of the students correspond to the content types of the sub-question banks one by one;
s13, the problem generator extracts the problem words from the sub-problem library corresponding to the type of the student.
Preferably, the step of collecting trainee information and marking the type of trainee according to the trainee information includes:
s12a, the trainees acquire the trainee information input by the trainees through the trainee terminals and transmit the information to the main control computer;
s12b, the main control computer divides the students into current period students and current period students according to the information of whether the students are at home or not;
s12c, the main control computer collects the student information of the current student to form a current student information base, and divides the current student into a plurality of standard types according to the student information of the current student;
and S12d, the main control computer collects the student information of the current-stage student to form a current-stage student information base, compares the student information of the current-stage student with the standard type, and marks the type of the current-stage student according to the comparison result.
Wherein the student information comprises grade, subject achievement, exercise achievement and presence information.
By collecting and analyzing the information of the current trainees, the trainees can be divided into a plurality of standard types according to the commonalities. For example, the score improvement efficiency of different students can be calculated by using the initial test scores of the disciplines before the current students start the invention and the scores of the disciplines after the current students finish the same number of questions, and the commonalities among the initial scores of the students can be found out by counting the initial scores of the students with the same or similar score improvement efficiency and are divided into a standard type. And counting the initial test results of the students in the period, comparing the initial test results of the students in the period with the initial test results in the standard types, and classifying the students in the period with the same or similar initial test results into the corresponding standard types. By analyzing the contact condition of the current-period trainees in each standard type, the trainees can know which exercise characters are more favorable for improving the score, so that the trainees can preferentially select the corresponding exercise characters in the exercise generation process of the current-period trainees.
Preferably, the step of processing the exercise characters to randomly form exercises with different expression forms and presenting the exercises through the student terminal includes:
s21, the exercise generator randomly adds expression forms to the exercise characters extracted in batches to form a batch of exercises;
and S22, the main control computer sends the exercises to the student terminal, and the student terminal displays the exercises through a display screen and/or a player.
Preferably, the number of the problem in each batch is 15-25 tracks.
Preferably, the first set of said problems is present in 5 to 8 presentation forms, each presentation form being present in a proportion of 10% to 25%.
Preferably, the step of collecting, by the student terminal, answer information of each exercise including an answer starting and ending time point and pupil images of the student in an answer process includes:
s31, the camera of the student terminal shoots the pupil image of the student in the whole course and stores the pupil image in the image processor;
s32, the timer of the student terminal records the time points of starting and ending the display of the exercises in the student terminal respectively, and sends the time points of starting and ending the response to the image processor;
s33, the image processor marks the time point on the time axis of the pupil image and cuts the pupil image into image segments according to the marks;
s34, the image processor collects the pupil diameter sequence and the corresponding time sequence in the image segment and generates the change curve of the pupil relative to the time;
and S35, the image processor sends the change curve to the main control computer.
Preferably, the step of analyzing the answer information and the pupil images and forming a corresponding sequence of exercise presentation forms and the attention state of the student comprises:
s41, the main control computer obtains the time length T1 from the image starting time to the pupil diameter minimum time in the image segments, and obtains the expression form information of the exercises corresponding to the image segments;
s42, the main control computer calculates the average value of the duration T1 corresponding to each expression form
；
S43, the main control computer obtains the expression form information and the average value
Form the expression form and the average value
The corresponding sequence of (a).
Preferably, the step of adjusting the proportion of the exercises in various expression forms in the next round of exercises according to the corresponding sequence comprises:
s51, the main control computer according to the expression form and the average value
By mean value of
Arranging the representations in ascending order;
s52, the problem generator averages the shortest average
The proportion of the exercises of the corresponding expression forms in the next batch of test questions is adjusted to be the preset proportion.
The shortest average value
The corresponding expression form represents that the trainee can enter the concentration state at the fastest speed when facing the subject of the expression form. By increasing the topic proportion of the representation,the answering efficiency of the student can be improved on the whole.
Preferably, the preset proportion is 60-80%.
Since the concentration of the student tends to change with the passage of time in the process of answering the question, the student may feel tired when facing the problem of the same expression type for a long time, thereby reducing the concentration degree. The left 20% -40% of the questions are used for generating the exercises in other expression forms to be inserted into each batch of exercises, the types of the exercises are enriched, the fatigue feeling of students is relieved, and the purpose of prolonging the duration of concentration in the answering process is achieved. Meanwhile, as the concentration degree of the students on the exercises with different expression forms is changed in the process of answering the questions, the shortest average value which enables the concentration speed of the students to be better than that of the batch is detected
The corresponding problem of the expression form appears, and in the next batch of problems, the optimal expression form will be changed.
Preferably, the presentation forms include at least two of a text form, an audio form, a video form, a fill-in-space form, a selection form, a question-and-answer form, a dictation form, an action expression form, and a networked competition form.
The problem in the audio form is read by a character recognition system, and is generated into a new audio file through a voice converter. The problem in the video form is read by a character recognition system, and is added into a prerecorded video background film through video processing software to form a new video file. The dictation form means that a student answers a question in a dictation form, and the student terminal collects and identifies the dictation audio information of the student and converts the dictation audio information into characters to be transmitted to the main control computer for judging the right and wrong.
Preferably, the representation is capable of forming a new representation by superposition. For example, the practice expression generated by superimposing the audio form, the blank filling form and the dictation form will be a practice word presented in the form of a blank filling question by reading it by a player, a student listens to the question and then dictates an answer, and the radio sends the student dictated answer to the master control to determine a right or wrong answer.
Preferably, since the student is difficult to keep concentration during answering, the student may be distracted by external disturbance after entering the concentration stage. By analyzing the holding time of the maximum pupil diameter state of the student, whether the student has distractions in the answering process can be known. Thus, depth analysis of pupil diameter variation in image segments was performed: after the student enters the state of the maximum pupil diameter and in the time period before the exercise is displayed at the student terminal, the number of times of pupil diameter reduction by 8% is recorded, the pupil reduction appearing at each time at the stage reflects the distraction of the student, and the number of times of distraction of the student in the answering process can be known by counting the number of times.
In order to achieve the above object, the present invention further provides a problem generation system based on differential teaching, which applies the steps of any one of the above methods. The problem generating system based on the differential teaching comprises a main control computer and student terminals; the main control computer comprises a question bank and a question generator; the trainee terminal includes an image processor.
Wherein, the exercise library is used for storing exercise characters; the exercise generator is used for processing the exercise characters; the image processor is used for processing images.
Preferably, the student terminal further comprises a camera for collecting pupil information of the student, a radio for collecting environmental sounds, a display screen for presenting pictures, a player for sounding, and a timer for recording exercise presentation time points.
Preferably, the player adjusts the volume of the radio according to the volume of the environmental sound acquired by the radio.
Preferably, the trainee terminal further comprises an inverter; the phase inverter generates reverse sound waves to offset the environmental sounds according to the environmental sounds acquired by the radio;
preferably, the student terminal further comprises a light sensor; and the display screen adjusts the screen brightness through the ambient brightness acquired by the light sensor.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A problem generation method based on differential teaching is characterized in that the method is applied to a problem generation system based on differential teaching; the problem generating system based on the differential teaching comprises a main control computer and student terminals; the main control computer comprises a question bank and a question generator; the trainee terminal comprises an image processor;
the method for generating the exercises based on the differential teaching comprises the following steps:
the exercise generator extracts exercise characters from the exercise library in batch according to the student information;
the exercise generator processes the exercise characters, randomly forms a batch of exercises in different expression forms, and presents the exercises through the student terminal;
the student terminal collects the answering information of each exercise and pupil images of students in the answering process; wherein the answer information comprises an answer starting and ending time point;
the image processor analyzes the answer information and the pupil images and forms a corresponding sequence of exercise expression forms and the attention state of the student;
and the main control computer adjusts the proportion of the exercises in various expression forms in the next round of exercises according to the corresponding sequence.
2. The method for generating exercises based on differential teaching according to claim 1, wherein the step of batch extracting exercise characters from the exercise database by the exercise generator according to student information comprises:
the main control computer divides the exercise characters into a plurality of content types and respectively inputs the content types into the sub exercise libraries corresponding to the content types of the exercise libraries;
the main control computer collects student information through the student terminal and marks the types of the students according to the student information, wherein the types of the students correspond to the content types of the sub-exercise libraries one by one;
the problem generator extracts the problem words from the sub-problem library corresponding to the type of the student.
3. The method for generating exercises based on differential teaching according to claim 2, wherein the step of the master control machine collecting trainee information through the trainee terminal and marking the type of the trainee according to the trainee information comprises:
the student acquires the student information input by the student through the student terminal and transmits the student information to the main control computer, wherein the student information comprises grade, subject score, exercise score and membership information;
the main control computer divides the students into current period students and current period students according to the information whether the students are at the present state or not;
the main control computer collects the student information of the current student to form a current student information base, and divides the current student into a plurality of standard types according to the student information of the current student;
the main control computer collects the student information of the current-stage student to form a current-stage student information base, compares the student information of the current-stage student with the standard type, and marks the type of the current-stage student according to a comparison result.
4. The method for generating exercises based on differential teaching according to claim 1, wherein the exercise generator processes the exercise text to randomly form a batch of exercises with different expression forms, and the exercise is presented through the student terminal, and the method comprises the following steps:
the exercise generator randomly adds expression forms to the exercise characters extracted in batches to form a batch of exercises;
the main control computer sends the exercises to the student terminal, and the student terminal displays the exercises through a display screen and/or a player.
5. The method for generating exercises based on difference teaching according to any one of claims 1-4, wherein the step of the student terminal collecting answer information of each exercise and pupil images of the student in the answering process comprises the following steps:
the camera of the student terminal shoots pupil images of the student in the whole process and stores the pupil images in the image processor;
the timer of the student terminal respectively records the time points of starting and ending the display of the exercises in the student terminal and sends the time points of starting and ending the response to the image processor;
the image processor marks the time point on a time axis of the pupil image and cuts the pupil image into image segments according to the mark;
the image processor collects the pupil diameter sequence and the corresponding time sequence in the image segment and generates a pupil variation curve with respect to time;
and the image processor sends the change curve to the main control computer.
6. The method for generating exercises based on difference teaching according to claim 5, wherein the step of analyzing the answer information and the pupil images by the image processor and forming a corresponding sequence of exercise expression forms and the attention states of the trainees comprises:
the main control computer obtains the duration T1 from the image starting time to the pupil diameter minimum time in the image segments, and obtains the expression form information of the exercises corresponding to the image segments;
the main control computer calculatesAverage value of said time period T1 corresponding to each expression
；
The main control computer acquires the expression form information and the average value
Form the expression form and the average value
The corresponding sequence of (a).
7. The method for generating exercises based on difference teaching according to claim 6, wherein the step of the main control computer adjusting the proportion of the exercises in various expression forms in the next round of exercises according to the corresponding sequence comprises:
the main control computer is used for calculating the expression form and the average value
By mean value of
Arranging the representations in ascending order;
the problem generator will average the shortest
The proportion of the exercises of the corresponding expression forms in the next batch of test questions is adjusted to be the preset proportion.
8. The method for generating exercises based on difference teaching of claim 7, wherein the preset proportion is 60% -80%.
9. The differential teaching-based problem generation method according to any one of claims 1-4, wherein the presentation forms include at least two of a text form, an audio form, a video form, a fill-in-blank form, a selection form, a question-and-answer form, a dictation form, an action expression form and a networked competition form.
10. A problem generation system based on differential teaching, characterized by applying the steps of the method of any one of claims 1-9; the problem generating system based on the differential teaching comprises a main control computer and student terminals; the main control computer comprises a question bank and a question generator; the trainee terminal includes an image processor.
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