JP2018106082A - Question creation device, question creation method and question creation program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide technique for achieving support of question creation having high learning efficiency with a simple operation.SOLUTION: A question creation device reads an image of an answer sheet to create questions. The question creation device includes: an image reading part for reading an answer sheet with answers of a learner are written and a correct answer sheet with correct answers displayed in advance to respectively create answer data and correct answer data; a score processing part for scoring the answer data on the basis of the correct answer data to determine a score; a question selection part for adjusting at least either a question amount or difficulty on the basis of the determined score, selecting a question having higher difficulty as the score becomes high, and reducing a question amount more as the score becomes high to select a question; and a question edition part for editing a question by using at least one selected question.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a problem creation apparatus, a problem creation method, and a problem creation program that support creation of a problem with high learning efficiency.

  Learning support systems using computers and the Internet have been developed. These systems also include a question creation system that creates questions according to the correctness of the learner's answer. Specifically, for example, Patent Document 1 automatically detects a teaching material problem related to a learning content that is easily misunderstood by the learner based on the situation of the learner's wrong answer, and relates to the learning content of the learner. A problem selection server or the like that automatically selects teaching material problems to be proposed has been proposed.

JP 2014-157302 A

  However, with the use of computers and the Internet, conventionally, it has been necessary to learn how to operate the system, which has been a heavy burden. In particular, the paper-based daily scoring work has not been fully coordinated.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a technique for realizing problem creation support with high learning efficiency with a simple operation.

  The present invention provides a problem creation device that creates a problem by reading an image on an answer sheet. The question creating device includes: an image reading unit that reads an answer sheet in which a learner's answer is written and a correct answer sheet on which correct answers are displayed in advance to generate answer data and correct answer data; and the correct answer data A score processing unit that scores the answer data based on the score, and adjusts at least one of the problem amount and the difficulty based on the determined score, and the higher the score, the higher the difficulty And selecting a problem by decreasing the amount of the problem as the score is higher, and a problem editing unit for editing the problem using the at least one selected problem.

  The present invention provides a problem creation method for creating a problem by reading an image on an answer sheet. The question creating method includes an image reading step of reading answer sheets on which learners' answers are written and correct answer sheets on which correct answers are displayed in advance to generate answer data and correct answer data, and the correct answer data. A scoring process for scoring the answer data based on the score, and adjusting at least one of the problem amount and the difficulty based on the determined score, and the higher the score, the higher the difficulty And selecting a problem by decreasing the problem amount as the score is higher, and a problem editing process of editing the problem using the selected at least one problem.

  ADVANTAGE OF THE INVENTION According to this invention, the technique which implement | achieves assistance of problem creation with high learning efficiency by simple operation can be provided.

It is a block diagram which shows the function structure of the problem preparation system 1 which concerns on one Embodiment of this invention. It is a table | surface which shows the content of the problem database 141 which concerns on one Embodiment. It is explanatory drawing which shows the correct answer sheet A and the answer sheet C which concern on one Embodiment. It is a flowchart which shows the content of the question creation process for review which concerns on 1st Embodiment. It is a flowchart which shows the content of the question preparation process for review which concerns on 2nd Embodiment.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as “embodiments”) will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a functional configuration of a problem creation system 1 according to the first embodiment of the present invention. The question creation system 1 includes a question creation device 100 and a personal computer 200. The problem creating apparatus 100 includes a control unit 110, an image reading unit 120, an image forming unit 130, a storage unit 140, a communication interface unit 150, and an automatic document feeder (ADF) 160. The control unit 110 includes an OCR processing unit 111, a scoring processing unit 112, and a problem editing unit 113. In this embodiment, the problem creating apparatus 100 is implemented as one of the operation modes of the image forming apparatus.

  The personal computer 200 is connected to the problem creating apparatus 100 using the communication interface unit 150. It is assumed that the personal computer 200 is used by a school teacher or a learner at home. In this example, it is assumed that it is used by a school teacher.

  The control unit 110 includes main storage means such as RAM and ROM, and control means such as MPU (Micro Processing Unit) and CPU (Central Processing Unit). The control unit 110 also has a controller function related to various I / O, USB (Universal Serial Bus), bus, and other hardware interfaces, and controls the entire problem creating apparatus 100.

  The storage unit 140 is a storage device including a hard disk drive or a flash memory that is a non-temporary recording medium, and stores a control program and data for processing executed by the control unit 110. The storage unit 140 further stores a problem database 141 and a problem file 142.

  FIG. 2 is a table showing the contents of the problem database 141 according to an embodiment. In this example, the problem database 141 is a high school physics problem database. The problem database 141 has “problem number”, “field code”, “relevance”, “class”, “scoring”, “difficulty”, and “required time” as fields.

  A problem file 142 is associated with the problem number. The question file 142 is a file that includes text and diagrams (image data) that constitute a question and correct answers. The field code is a code representing each learning field of mechanics, thermodynamics, wave, electromagnetics, and atomic physics in high school physics. The association is a code representing a learning field to which each problem is not directly related but related. Specifically, for example, the problem number 0829 is a problem of mechanics, but indicates that it is a complex problem including elements of thermodynamics.

  The category is indicated by the problem number of a similar problem. The score indicates the score when it is assumed that the test is a standard test set in advance (100 points in a required time of 1 hour). The difficulty level indicates the difficulty level of each problem in five levels from the highest difficulty level “5” to the lowest difficulty level “1”. The time required is the standard time required when it is assumed that each question was presented in the test.

  Specifically, for example, the problem number 0829 is a dynamic problem because the field code is “M”. This problem is the second highest difficulty “4”, and the required time is set to 10 minutes. When this question is given as part of a 100-point test (5 sheets of test paper) in 1 hour, the score is 10 points, and the test is 100-point test (10 sheets of test paper) in 2 hours ) Will be adjusted to about 5 points.

  FIG. 3 is an explanatory diagram showing a correct answer sheet A and an answer sheet C according to an embodiment. FIG. 3A shows the first sheet of correct answer sheet A on which correct answers are written in advance. FIG. 3B shows the first answer sheet C for the student to solve and fill in the problem. In this example, it is assumed that the correct answer sheet A and the answer sheet C are each composed of five sheets, and 20 questions have a maximum score of 100.

  The correct answer sheet A is an example of a correct answer sheet generated by the question creator (in this example, a school teacher) using the question creating system 1. The correct answer sheet includes a question sentence display area A1 in which a question sentence is displayed, a scoring display area A2 in which a scoring is displayed, a field code display area A3 in which a field code is displayed, It has a related field code display area A4, which is an area where related learning areas are displayed, a difficulty level display area A5, which is an area where difficulty is displayed, and a correct answer display area A6, which is an area where answers are displayed. doing. In the scoring display area A2 to the difficulty display area A5, codes for associating attribute data of each problem are displayed.

  In the correct answer sheet A, a QR code (registered trademark) QC is displayed in the name column. The QR code (registered trademark) QC includes information for identifying the problem database 141 and the record used for creating the problem. Thereby, the question creation system 1 identifies the correct answer sheet A and realizes cooperation with the question database 141 (details will be described later). The problem creation system 1 confirms the consistency between the QR code (registered trademark) QC data and the data displayed in the scoring display area A2 to the difficulty display area A5.

  In the present embodiment, QR code (registered trademark) QC data is used by the question creation system 1, and codes displayed in the scoring display area A2 to the difficulty display area A5 are used by the teacher. However, only the codes displayed in the scoring display area A2 to the difficulty display area A5 may be used. In this case, a code indicating the correct answer sheet A is displayed in the name column.

  In this example, the first question to the fourth question are generated using the records of question number 0829 to question number 0832, respectively. Specifically, for example, the first question is generated using the question file 142 associated with the question number 0829 and the record of the question number 0829. In the question sentence display area A1 and the correct answer display area A6, a question sentence and a correct answer generated based on the question file 142 are displayed, respectively. In the score display area A2, the field code display area A3, the related field code display area A4, and the difficulty level display area A5, 10 points are assigned as a score, M (dynamics) as a learning field (displayed by the symbol C1), and a related learning field ( T (thermodynamics) is displayed as symbol C2, and “4” (second highest difficulty) is displayed as difficulty (indicated by symbol L).

  Thus, the teacher can create a test question simply by selecting a question from the question database 141. However, the teacher may correct the question number 0829 and adopt it as the new question as the first question. In this case, the problem creation system 1 automatically adds a record to the problem database 141 as a new problem. The question creation system 1 automatically assigns a question number (for example, 1135), and a window for displaying a score, a field code, a related field code, a problem number as a class, a difficulty level, and a required time is displayed on the personal computer 200. Display and store in each field according to teacher's correction and confirmation operations.

  When the problem number 0829 is corrected and adopted as a new problem, the problem number is automatically registered in the category field in order to identify the problem after correction and the problem before correction as similar problems. For example, when a problem 1135 is newly created as a correction problem for the problem 0829, the problem 1135 is registered in the problem field of the problem 0829, and the problem 0829 is registered in the problem field of the problem 1135. (See FIG. 2). For identification as a similar problem, for example, a code common to the problems 0829 and 1135 may be registered in the classification field for identification.

  On the other hand, the answer sheet C is automatically created from the correct answer sheet A by the question creating system 1. In the answer sheet C, the scoring display area A2 to the correct answer display area A6 are deleted, and a derivation process description area C1 and an answer entry column C2 for describing a calculation formula and the like are provided. Note that the question creation system 1 may be configured to display a score and a score on the answer sheet C in a predetermined format according to the confirmation of the teacher.

  FIG. 4 is a flowchart showing the contents of the review question creation process according to the first embodiment. The review question creation process is a learning material for each learner (in this example, a school student) to perform an effective review based on the results of an examination performed using the answer sheet C. This is a process for creating a review question.

  In step S10, the teacher executes a scan process. In the scanning process, the teacher puts one set of correct answer sheets A (five sheets) and each set of answer sheets C (five sheets) on the ADF 160 of the question creating apparatus 100 and sets a start button (not shown). Push. The reading unit 120 automatically reads the images on the correct answer sheet A and the answer sheet C.

  In step S20, the OCR processing unit 111 of the question creating apparatus 100 recognizes characters on the correct answer sheet A and the answer sheet C and converts them into a text file. The OCR processing unit 111 detects the correct answer sheet A whose name is a QR code (registered trademark) QC. The OCR processing unit 111 further recognizes the student ID number, name, and characters in the answer column of each answer sheet C and links them to the image data of each answer sheet C. Multiple text files are linked to each student's student ID number. The OCR processing unit 111 confirms the examinee based on the consistency between the student ID number and the name.

  The text file and image data associated with the correct answer sheet A are called correct answer data. The text file and image data associated with the answer sheet C are called answer data.

  In step S30, the scoring processing unit 112 executes scoring processing. The grading processing unit 112 acquires a correct answer from a text file or image data associated with the correct answer sheet A. The grading processing unit 112 detects whether or not the correct answer is described in the answer column of the image of each answer sheet C linked to each student ID number. Specifically, the scoring processing unit 112 determines, for example, whether or not the character “15m” is written in the answer field of the first question by a pattern matching method. Specifically, the scoring processing unit 112 determines whether or not a characteristic part as an image of a character (15m) is displayed in the answer column.

  In this way, the scoring processing unit 112 does not recognize any text based on the character image, but searches for a known character that is a correct answer in advance, so that highly accurate detection can be realized. The scoring processing unit 112 prints the scoring results of each answer sheet C. Specifically, the scoring processing unit 112 displays the scoring result (○ or ×) and the score on the answer column superimposed on the image of each answer sheet C and displays the image data file on the image forming unit 130. Generate and send to computer 200. The scoring processor 112 totals the scoring results for each learning field.

  In the correct answer sheet A, the teacher uses the question sentence display area A1, the scoring display area A2, the field code display area A3, the related field code display area A4, and the difficulty level display area A5 to give an intention to answer questions. Check the output scoring results while checking. If there is an OCR misreading or scoring mistake, the teacher can correct it on the personal computer 200 through a user interface (not shown) by editing the image data file.

  In step S40, the question editing unit 113 functions as a question selection unit, and selects a question that is relatively more difficult than the question on the answer sheet C for a learning field with a correct answer rate of 80% or more (step S45). ). As a result, the teacher can effectively improve the level by submitting, as an assignment, a review problem with a high degree of difficulty to students who have advanced understanding. Specifically, for example, in mechanics, questions with a difficulty level up to difficulty level “4” are given, and if all are correct, problems with difficulty level “5” are searched from the problem database 141. Become.

  In step S50, the question editing unit 113 selects the same difficulty level question with the same difficulty level as the question on the answer sheet C for the learning field where the correct answer rate is 50% or more and less than 80% (step S55). The difficulty level problem is a similar problem that is different at the same difficulty level. As a result, the educator can effectively improve the level by submitting, as an assignment, a review problem having the same difficulty level to a student with incomplete understanding. Specifically, for example, in mechanics, questions with difficulty level “2” to difficulty level “4” are given, and when the correct answer rate is 60%, problems with difficulty level “2” to difficulty level “4” Is retrieved from the problem database 141.

  In step S60, the question editing unit 113 selects the same question as the question on the answer sheet C for the learning field where the correct answer rate is 30% or more and less than 50% (step S65). If the educator has a relatively large number of students less than 50%, he will return the answer sheet and explain the examination questions. In this case, the educator can confirm the degree of understanding based on the explanation of the examination questions by causing students who have not understood well to submit review questions identical to the contents of the examination as assignments.

  In step S <b> 70, the question editing unit 113 selects a question that is relatively less difficult than the question on the answer sheet C for a learning field in which the correct answer rate is less than 30%. As a result, it is possible to allow a student who has not reached the level to solve the problem on the answer sheet C to perform effective learning. Specifically, for example, in mechanics, questions with difficulty level “2” to difficulty level “4” are given, and when the correct answer rate is 20%, the problem database 141 searches for problems with difficulty level “1”. Will be.

  In step S80, the problem editing unit 113 executes an editing process. In the editing process, the question editing unit 113 proposes to the teacher a plurality of questions in which the difficulty level is automatically set for each learning field in the personal computer 200 functioning as a terminal of the question creating system 1. . The teacher selects and edits an appropriate problem from the problems proposed by the problem creation system 1. The selection by the teacher may be applied collectively to students whose correct answer rate is in the same range (for example, the correct answer rate is 30% or more and less than 50%). Thereby, it is not necessary to select for each student, and it is sufficient to select for each range of the correct answer rate, so that the burden on the teacher can be reduced.

  Further, the question editing unit 113 may search the question database 141, select a question at random, and automatically create a question (automatic creation mode). In the automatic selection of questions, past questions may be stored in the question database 141, and may be limited to questions that have not been asked in the past 1-3 years, for example.

  In step S90, the image forming unit 130 automatically fills in the student ID number and name in the question generated for each student and prints the answer sheet. Thereby, the teacher can generate the review problem set for each student according to the scoring status of each learning field with a small burden.

  As described above, according to the problem creation system 1 of the first embodiment, the scoring of the answer can be automated, and the difficulty is appropriately adjusted for each learning field in the selection of the question for review, and is proposed to the teacher. By (or automatically selecting), it is possible to realize problem creation with high learning efficiency semi-automatically (or automatically) based on the scoring results.

  FIG. 5 is a flowchart showing the contents of the review question creation process according to the second embodiment. The second embodiment is different from the first embodiment in that it adjusts the problem amount, not the difficulty level of the problem, and is identical in other configurations. Specifically, the second embodiment is different from the first embodiment in that step S45, step S55, step S65 and step 70 are changed to step S45a, step S55a, step S65a and step 70a, respectively.

  In step S45a, the question editing unit 113 determines that a review task is unnecessary for a learning field having a correct answer rate of 80% or more. As a result, the teacher can rely on the autonomy of the student who is well-understood, and can easily ensure the learning time for other subjects and other learning fields for the student.

  In step S55a, the question editor 113 sets a review question for a required time of 10 minutes for a learning field with a correct answer rate of 50% or more and less than 80%. Accordingly, the question editing unit 113 can set a review question composed of two questions with a required time of about 5 minutes or one question with a required time of 10 minutes.

  In step S65a, the question editor 113 sets a review question for 20 minutes when the correct answer rate is 30% or more and less than 50%. Thereby, for example, the question editing unit 113 can set a review question composed of four questions having a required time of about 5 minutes or two questions having a required time of 10 minutes.

  In step S70a, the question editing unit 113 sets the review question for 30 minutes because the correct answer rate is less than 30%. Accordingly, the question editing unit 113 can set a review question composed of, for example, six questions with a required time of about 5 minutes or three questions with a required time of 10 minutes.

  As described above, according to the problem creating system 1 according to the second embodiment, the problem amount is appropriately adjusted for each learning field in the creation of the problem for review, and is proposed to the teacher, thereby semi-automatically based on the score result. Problem creation with high learning efficiency can be realized.

  Note that the second embodiment can be implemented in combination with the first embodiment. Specifically, the problem creation system 1 may be configured to increase the difficulty level of the problem amount and decrease the problem amount as the learning field has a higher correct answer rate. On the contrary, when the problem amount selected by the problem editing unit 113 is smaller than the problem amount set based on the determined score, the problem belonging to the learning field and the problem belonging to the writing related learning field The problem may be selected for each learning field. The problem amount is not necessarily an amount that takes the required time into consideration, and may be simply the number of problems.

  The present invention can be implemented not only in the above embodiments but also in the following modifications.

  Modification 1: In each of the above embodiments, the problem creation system 1 uses QR code (registered trademark) to realize cooperation with the problem database 141, but is not limited to QR code (registered trademark), and other May be displayed. Other displays are not limited to codes but may be text.

  The correct answer sheet A is linked to the problem database 141 using a QR code (registered trademark). However, since the question answer display area A1 to the answer display area A6 are displayed on the correct answer sheet A, the teacher can confirm the intention of the question at the time of scoring evaluation and that the movement of the question creating system 1 is normal. Can be confirmed. As described above, the problem creation system 1 can seamlessly cooperate with daily scoring work on a paper basis, so that the introduction burden can be reduced and smooth operation can be performed.

  Note that the description of the question sentence display area A1 to the correct answer display area A6 may be recognized and linked to the question database 141 without using a QR code (registered trademark) or other codes.

  Variation 2: In each of the above embodiments, the question creation system 1 uses the question database 141 only for question creation, and performs scoring processing based on information (correct answer) read and recognized from the display on the correct answer sheet A However, it is not always necessary to use the information (correct answer) read and recognized from the display on the correct answer sheet A for the scoring process. Specifically, in cooperation with the question database 141, the correct answer is obtained from the question file 142 linked to the question database 141 based on the QR code (registered trademark) QC read from the correct answer sheet A, and the scoring process is performed. You may do it.

DESCRIPTION OF SYMBOLS 1 Image formation system 100 Problem preparation apparatus 200 Personal computer 110 Control part 111 OCR process part 112 Grading process part 113 Problem edit part 120 Image reading part 130 Image formation part 140 Storage part 141 Problem database 150 Communication interface part 160 Automatic document feeder ( ADF)

Claims (6)

A question creation device that creates a question by reading an image of an answer sheet,
An image reading unit that reads the answer sheet in which the learner's answer is written and the correct answer sheet on which the correct answer is displayed in advance to generate answer data and correct answer data, respectively;
A scoring processing unit for scoring the answer data based on the correct answer data and determining a score;
Adjust at least one of the problem amount and the difficulty level based on the determined score, select a problem with a higher difficulty level as the score is higher, and select a problem with a lower problem amount as the score is higher A problem selector,
A question editor for editing a question using the selected at least one question;
A problem creation device comprising: The problem creating device according to claim 1,
The correct answer sheet includes, as an image, information indicating a plurality of questions and a learning field associated with each of the plurality of questions,
The scoring unit scores for each learning field,
The problem selection unit is a problem creation device that selects a problem for each learning field from problems belonging to the learning field based on the score determined for each learning field. The problem creating device according to claim 2,
The correct answer sheet includes, as an image, information representing a related learning field linked as a learning field related to each of the plurality of questions,
The problem selection unit is configured to select a problem for each learning field from a problem belonging to the learning field and a problem belonging to the related learning field based on the score determined for each learning field. The problem creating device according to claim 2 or 3,
If the score determined for each learning field is equal to or greater than a preset threshold, the question selecting unit is in the same learning field as the learning field and is different from the question presented on the answer sheet. A question creation device that selects a question and selects a question that is the same as the question presented on the answer sheet when the score determined for each learning field is lower than the threshold value. The problem creating device according to any one of claims 2 to 4,
The correct answer sheet includes, as an image, information representing a related learning field linked as a learning field related to each of the plurality of questions,
The problem editing unit belongs to the problem belonging to the learning field and the related learning field when the problem amount selected by the question selection unit is smaller than the problem amount set based on the determined score. A question creation device for selecting a question for each learning field from a question. A question creation method for creating a question by reading an image on an answer sheet,
An image reading step of reading answer sheets in which learners' answers are written and correct answer sheets in which correct answers are displayed in advance to generate answer data and correct answer data, respectively;
A scoring process for scoring the answer data based on the correct answer data to determine the score;
Adjust at least one of the problem amount and the difficulty level based on the determined score, select a problem with a higher difficulty level as the score is higher, and select a problem with a lower problem amount as the score is higher Problem selection process;
An issue editing step of editing an issue using the selected at least one issue;
A problem creation method comprising: