JP4041329B2 - Teaching material presentation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a teaching material presentation method in so-called e-Learning.
[0002]
[Prior art]
In recent years, learning support systems using network and web (World Wide Web) technologies have been developed. In this system, a learner (student) takes a course offered on the web using a browser.
[0003]
The teaching materials of this system are configured by creating a course unit for each page, similar to conventional paper text. The student can proceed with learning by sequentially acquiring the previous unit pages according to the progress.
[0004]
In addition, if there are words or phrases for which you want to check the exact meaning during the course, students will be given a page where the words are explained from the pages of the unit they have already learned. By searching, the exact meaning of the word can be confirmed.
[0005]
[Problems to be solved by the invention]
However, according to the conventional learning support system, in order to find a target page from a page of an already learned unit, repeatedly click the browser's back button to go back to the page of the learned unit in order or return an appropriate keyword. It is necessary to perform an operation of searching for a keyword using the keyword and jumping to a page obtained by the search result.
[0006]
The problem of the present invention is that, without performing the operations as described above, the target page can be selected from the unit pages that have been learned while tracing the page with the appropriate hits, as in the case of flipping through the text of conventional paper. It is to provide a teaching material presentation method that can find out.
[0007]
[Means for Solving the Problems]
The teaching material presenting method according to the present invention employs the following configuration in order to solve the above problems.
[0008]
[Means for Solving the Problems]
That is, in this teaching material presentation method, for each of a plurality of teaching material units constituting the teaching material, the computer specifies order information for identifying the order of attendance defined in the teaching material unit, and web data for displaying the teaching material unit. And in the storage device First Remember to database First Memory procedure, A second storage procedure for storing one or more keywords for each teaching material unit in a second database in the storage device for each of the plurality of teaching material units; a second database for each teaching material unit for each of the plurality of teaching material units A third storage procedure for storing, in the matrix table in the storage device, the number of matching keywords in the second database for the teaching material unit whose order is earlier than the learning material unit as a closeness , When a request for teaching material unit is received from any of the client devices through the communication device, the teaching material unit web data in the order next to the order of the teaching material unit web data already transmitted to the client device is First A first transmission procedure for reading out web data from the database and transmitting the read web data to the requesting client device through the communication device, and that there is a predetermined input from the client device that transmitted the web data in the first transmission procedure When receiving information in the receiving procedure for receiving the information shown through the communication device and in the receiving procedure, the order is earlier than the teaching material unit of the web data transmitted in the first transmission procedure, and is the most for the teaching material unit. A close teaching material unit From the matrix table Communication device to client device as data for displaying specified procedure and web data of teaching material unit specified in the specifying procedure on the same screen as teaching material unit of web data transmitted in first transmission procedure It is characterized by executing a transmission procedure for transmitting through the network.
[0009]
With this configuration, the student who operates the client device makes a predetermined input when an unknown word appears when the learning material unit is displayed on the browser screen 30 and the learning proceeds. As a result, an already learned teaching material unit whose contents are closely related to the teaching material unit can be displayed on the browser screen together with the teaching material unit. However, if predetermined input is repeated, teaching material units can be sequentially displayed in descending order of closeness. This makes it possible to search for the target pages from the already-learned teaching material units in the order of closeness, that is, in the order in which the hits are assigned, in the same way as the conventional paper text is flipped.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a system including a learning server device 10 according to the present embodiment. The learning server device 10 is a server computer installed in an e-learning center, and can be connected to a plurality of client devices 20 via a network such as the Internet. The learning server device 10 includes a CPU 10P and a storage unit 10M including a hard disk and a memory connected to the CPU 10P. A learning support program 10L that is read and executed by the CPU 10P is installed in the storage unit 10M, and a learning material DB 11, a keyword DB 12, a similarity matrix DB 13, an explanation keyword identification word DB 14, an exemplary keyword identification word DB 15, and A keyword DB 16 by function is accumulated. Further, a similarity matrix DB creation program 17 and a function-specific keyword DB creation program 18 for creating the similarity matrix DB 13 and the function-specific keyword DB 16 are installed in the storage unit 10M. The learning support program 10L includes a web server program module, a server side program module, and a program module for executing processing described later with reference to the flowcharts of FIGS.
[0011]
The client device 20 is composed of, for example, a personal computer installed with a web browser program. The student can take the course provided by the learning server device 10 by accessing the learning server device 10 from the client device 20. Note that some of the teaching materials provided by the learning server device 10 are each composed of a plurality of teaching material units. This teaching material unit has contents composed of one topic and an explanatory sentence composed of sentences of the first to third paragraphs. When a student takes a certain course, the student acquires the teaching materials corresponding to the course in order for each teaching material unit, and advances the learning. This learning material is managed by a learning material DB 11 in the learning server device 10.
[0012]
FIG. 2 is a schematic diagram showing a data layout of the learning material DB 11. This learning material DB 11 includes a plurality of records created for each learning material unit, and each record has fields of “learning material unit number” and “learning material entity”. In the “learning material unit number” field, a learning material unit number uniquely assigned to the learning material is stored. In the “learning material entity” field, the content (text data and image data) of the learning material unit corresponding to the record is stored. Note that the contents of each learning material unit are created so as not to include the topics explained in the learning material unit with the higher learning material unit number, and the students acquire the contents of each learning material entity in the order of the learning material unit number. As the study progresses, unexplained topics do not appear in the explanation.
[0013]
FIG. 3 is a schematic diagram showing a data layout of the keyword DB 12. The keyword DB 12 includes a plurality of records created for each teaching material unit, and each record has fields of “teaching material unit number” and “keyword”. A learning material unit number is stored in the “learning material unit number” field. In the “keyword” field, several character strings extracted as keywords from the contents of the teaching material unit are stored. Note that the morphological analysis technique (for example, Japanese Patent Application Laid-Open No. 11-134334) previously disclosed by the present applicant can be used for the process of extracting keywords from the contents of teaching materials. When creating the learning material DB 11, the creator of the learning material applies the morphological analysis technique to each learning material unit, extracts keywords of the contents of each learning material unit, and creates the keyword DB 12.
[0014]
FIG. 4 is a schematic diagram showing a data layout of the similarity matrix DB 13. This similarity matrix DB 13 is configured as a lower half triangular matrix in which the vertical axis and the horizontal axis are teaching material unit numbers, and each element includes the number of the same keyword between teaching material units. Stored as similarity. For example, in the keyword DB 12 of FIG. 3, since only the word “computer” is the keyword for the teaching material unit numbers 4 and 11, 1 is stored in the element R (11, 4) of the similarity matrix DB 13. Has been. The similarity matrix DB 13 is created by a similarity matrix DB creation program 17 described later with reference to FIG.
[0015]
FIG. 5 is a schematic diagram showing a data layout of the explanation keyword identification word DB 14. The explanation keyword identification word DB 14 is configured by listing explanation keyword identification words in each row. The explanation keyword identification word is an identification word used for extracting some keywords from the keywords stored in the keyword DB 12, and in the contents of the teaching material unit, a keyword and a sentence that explains the keyword that follows the keyword. Is a word that connects Specifically, the words are “explain”, “explain” and “what”. In the following, keywords extracted using the explanation keyword identification word are handled as explanation keywords.
[0016]
FIG. 6 is a schematic diagram showing a data layout of the exemplary keyword identifier DB15. This exemplary keyword identifier DB 15 is configured by listing exemplary keyword identifiers in each row. The exemplary keyword identification word is an identification word used for extracting some keywords from the keywords stored in the keyword DB 12, and in the contents of the teaching material unit, an example of using the keyword and the object or method indicated by the keyword It is a word that connects texts explaining operation examples. Specifically, the words are “example”, “exemplary”, “illustration”, “realization”, and the like. In the following, a keyword extracted using this exemplary keyword identification word is treated as an exemplary keyword. The keyword extracted as the example keyword can also be extracted as the explanation keyword.
[0017]
FIG. 7 is a schematic diagram showing a data layout of the function-specific keyword DB 16. The functional keyword DB 16 includes a plurality of records created for each teaching material unit, and each record has fields of “teaching material unit number”, “description keyword”, “related keyword”, and “example keyword”. ing. Each field stores a teaching material unit number, an explanation keyword, a related keyword, and an example keyword. The related keyword is a keyword extracted from the keyword stored in the keyword DB 12, and is a keyword that has not been extracted as an explanatory keyword or an exemplary keyword. This function-specific keyword DB 16 is created by a function-specific keyword DB creation program 18, which will be described later with reference to FIG.
[0018]
<Processing during preparation>
Hereinafter, DB creation processing that must be prepared before the creator of the teaching material provides the student with the teaching material will be described with reference to the flowcharts of FIGS. 8 and 9. As described above, the creator of the learning material DB 11 creates the keyword DB 12 based on the learning material DB 11. Next, the creator operates the learning server device 10 to create the similarity matrix DB 13 and the function-specific keyword DB 16.
[0019]
(Create similarity matrix DB)
The creator of the learning material operates the learning server device 10 to activate the similarity matrix DB creation program 17 and starts the similarity matrix DB creation process shown in FIG.
[0020]
After starting the similarity matrix DB creation process, the learning server device 10 sets the variable i indicating the number of loop executions to 2 for each learning material unit with learning material unit numbers 2 to m, where m is the total number of learning material units. The first loop L1 is executed while incrementing one by one.
[0021]
In the first loop L1, the learning server device 10 first reads all keywords (KWi) included in the i (2, 3,..., M) th teaching material unit from the keyword DB 12 (S101). Next, the learning server device 10 increments the variable j indicating the number of loop executions from 1 to 1 for each learning material unit with the learning material unit numbers from the first to the (i-1) th, while the second loop L2 Execute the process.
[0022]
In the second loop L2, the learning server device 10 first reads all keywords (KWj) included in the j (1, 2,..., I−1) th teaching material unit from the keyword DB 12 (S111). Next, the client device 20 compares the keyword (KWi) with the keyword (KWj), counts the number of the same keyword, and stores the count value in the element (R (i, j)) of the similarity matrix. (S112). Then, the learning server device 10 executes the processing in the loop L2 for all teaching material units having teaching material unit numbers smaller than i, and then leaves the loop L2. After that, the learning server device 10 executes the processing in the loop L1 for all the teaching material units having the teaching material unit number of 2 or more, then leaves the loop L1 and ends the processing of the flowchart of FIG. .
[0023]
By the similarity matrix DB creation processing described above, the number is stored in each element (R (i, j)) of the similarity matrix DB 13 shown in FIG. 4 to complete the similarity matrix.
[0024]
(Create keyword DB by function)
The creator of the learning material operates the learning server device 10 to start the function-specific keyword DB creation program 18 and starts the keyword function DB creation process shown in FIG.
[0025]
When the keyword function DB creation process is started, the learning server device 10 increments a variable i indicating the number of loop executions from 1 to 1 for each learning material unit having learning material unit numbers 1 to m, 3 loop L3 processing is executed. In the third loop L3, the learning server device 10 sequentially executes a process for extracting explanatory keywords (S201), a process for extracting exemplary keywords (S202), and a process for extracting related keywords (S203). .
[0026]
Note that a text mining technique is used for the process of extracting the explanation keyword (S201) and the process of extracting the example keyword (S202). Since this text mining technique is a general technique, it will not be described in detail, but its outline is as follows.
[0027]
That is, when extracting the explanation keyword, one keyword is read out from the “keyword” field of the i (1, 2,..., M) th teaching material unit in the keyword DB 12, and the i th teaching material unit in the teaching material DB 11 is read out. In the explanation text in the “textbook entity” field, when any of the explanation keyword identifiers in the explanation keyword identifier DB14 of FIG. 5 is in the sentence containing the keyword and in the vicinity of the keyword Is extracted as an explanatory keyword. This process is performed for all the keywords of the i-th teaching material unit. In addition, when extracting an example keyword, what is necessary is just to use example keyword identification word DB15 in said process.
[0028]
The related keyword extracting process (S203) extracts the explanatory keyword and the exemplary keyword by the above process, and then extracts the keyword that has not been extracted as the explanatory keyword and the exemplary keyword as the related keyword.
[0029]
After that, a record made up of character strings extracted as explanation keywords, example keywords, and related keywords is stored in the functional keyword DB 16 (S204).
[0030]
Then, the learning server device 10 executes the above described keyword extraction process (S201), exemplary keyword extraction process (S202), and related keyword extraction process (S203) for all teaching material units, and then executes this loop L3. It leaves | separates and the process of the flowchart of FIG. 9 is complete | finished.
[0031]
The functional keyword DB 16 shown in FIG. 7 is created by the functional keyword DB creation processing described above.
[0032]
<Processing at the time of attendance>
Hereinafter, processing when a student takes a certain teaching material will be described. In the following, the contents of the overall processing will be described first with reference to the flowchart of FIG. 10, and then the details of the processing related to display switching will be described with reference to the flowcharts of FIGS.
[0033]
First, the contents of overall processing will be described. As shown in FIG. 10, the student operates the client device 20 to notify the learning server device 10 that the learning of a certain teaching material is started (S301). The student's attendance is accepted (S401). Then, the learning server device 10 executes the process of the fourth loop L4 while incrementing the variable i indicating the number of loop executions by 1 for each learning material unit having the learning material unit numbers 1 to m. . Note that after completing the processing of the fourth loop L4, the learning server device 10 transmits an attendance end notification indicating that the course using this teaching material has been completed to the client device 20 (S402), and the flowchart of FIG. Terminate the process.
[0034]
In the loop L4, the learning server device 10 first switches off a flag indicating on / off of a similar search mode and a keyword search mode, which will be described later (S411), and the i (1, 2,..., M) -th teaching material unit. Is created and transmitted to the client device 20 (S412).
[0035]
The client device 20 notifies the learning server device 10 of starting learning in S301, and then the i-th teaching material unit web data transmitted from the learning server device 10 in S412 or from the learning server device 10 in S402. The transmitted attendance completion notice is received (S302). When the client device 20 determines that the attendance end notification has been received (S302: YES), the client device 20 executes attendance end processing such as displaying a screen indicating that the course using this teaching material has been completed. (S304), the process of the flowchart of FIG. On the other hand, when it is determined that the web data has been received (S303: NO), the client device 20 displays a web page including the contents of the teaching material unit in the window of the browser screen (S305).
[0036]
An example of the browser screen is shown in FIG. The browser screen 30 shown in FIG. 18 includes a “description search” button 31, a “related search” button 32, an “exemplary search” button 33, and a “next” button 34, and a teaching material unit number. The contents of 11 teaching material units are shown. Further, the browser screen 30 is provided with a clickable area 35 so as to surround the contents of the teaching material unit.
[0037]
Then, after displaying the i-th teaching material unit web page, the client device 20 waits for any one of the buttons 31 to 34 and the clickable area 35 to be clicked (S306). If it is determined, it is determined whether or not the clicked portion is the “next” button 34 (S307). If the clicked location is the “next” button 34, the client device 20 transmits information indicating that the “next” button 34 has been clicked to the learning server device 20 (S311), and i = I + 1 It waits to receive the web data of the learning material unit or the attendance end notification (S302). On the other hand, if the clicked location is not the “next” button 34, the client device 20 transmits information indicating the clicked location to the learning server device 10 (S308).
[0038]
The learning server device 10 transmits web data to the client device 20 in S412, and then waits for information indicating the clicked portion to be transmitted from the learning server device 10 (S413). Then, after receiving the information, the learning server device 10 determines that the information does not indicate the buttons 31 to 33 (that is, the information indicates the clickable area 35) ( In S414: NO, the flag for the similar search mode is switched on (S415), a similar search subroutine (described later) in FIG. 11 is executed (S416), and the “next” button 34 is clicked. It waits for notification (S419). On the other hand, when the learning server device 10 determines that the information received in S413 indicates the buttons 31 to 33 (S414: YES), the learning server device 10 switches on the keyword search mode flag (S417). 12 keyword search subroutines (to be described later) are executed (S418), and the system waits for notification that the “next” button 34 has been clicked (S419).
[0039]
After transmitting the information indicating the location clicked in S308, the client device 20 executes a display switching subroutine (described later) shown in FIG. 11 or 12 (S309), and the “Next” button 34 is clicked. (S310). When the “next” button 34 is clicked, the client device 20 transmits information indicating that the “next” button 34 has been clicked to the learning server device 10 (S311), and i = i + 1th. It waits for the learning data to be transmitted from the learning server device 10 as web data for each learning material or a learning end notification (S302).
[0040]
When the learning server device 10 receives information indicating that the “next” button 34 has been clicked (S419), the learning server device 10 proceeds to the processing for the next teaching material unit (i = i + 1) in the loop L4. Then, the learning server device 10 executes the processing in the loop L4 for all teaching material units, then leaves the loop L4, and as described above, completes the learning that the course using the teaching material has been completed. A notification is transmitted to the client device 20 (S402).
[0041]
Next, the contents of processing related to display switching will be described. Note that there are two types of processing relating to display switching, that is, using the similarity search subroutine of S416 in FIG. 10 and using the keyword search subroutine of S418 in FIG. In the following, the contents of the display switching process by the similarity search subroutine will be described according to the flowchart of FIG. 11, and then the contents of the display switching process by the keyword search subroutine will be described according to the flowchart of FIG. However, in FIG. 11 and FIG. 12, the flowchart on the left shows the processing contents of the display switching subroutine. In FIG. 11, the flowchart on the right side shows the processing content of the similarity search subroutine, and in FIG. 12, the flowchart on the right side shows the processing content of the keyword search subroutine.
[0042]
(Similarity search)
When the learning server device 10 starts executing the similarity search subroutine in S416 of FIG. 10, it first creates a similarity table (S601). Here, this similarity table will be described. For example, when the eleventh teaching material unit is the processing target at the time of S601, the learning server device 10 reads all the elements in the row whose teaching material unit number is 11 in the similarity matrix DB13, Sorting in descending order with degree as the first key and teaching material unit number as the second key. The result is shown in FIG. The learning server device 10 creates a similarity table as shown in FIG. 16 in S601.
[0043]
Then, the learning server device 10 increments the variable v indicating the number of loop executions from 1 to 1 for each component from the 1st column to the i−1th column of the similarity table of FIG. The process of the loop L5 is executed. In this loop L5, the learning server device 10 first determines whether or not the variable V is i (S611). If the variable v is i, the learning server device 10 transmits a search completion notification to the client device 20 (S612), exits the loop L5, and ends the similarity search subroutine of FIG. Returning to the main routine of FIG. On the other hand, if the variable v is not i, the web data of the learning material unit indicated by the learning material unit number in the v (1, 2,..., I−1) column of the similarity table in FIG. Transmit (S613).
[0044]
When one client device 20 starts executing the display switching subroutine in S309 in FIG. 10, the search end notification transmitted from the learning server device 10 in S612 or the web transmitted from the learning server device 10 in S613. Data is received (S501). When the client device 20 receives the search end notification (S502: YES), the client device 20 ends the display switching subroutine of FIG. 11 and returns to the main routine of FIG. On the other hand, when receiving the web data (S502: NO), the client device 20 divides the window of the browser screen into two vertically and receives the web page received in S302 in the lower window in S501. The web page is displayed in the upper window (S503). A screen example of the browser screen at this time is shown in FIG. As shown in FIG. 19, the upper window of the browser screen 30 describes the contents of the learning material unit received in S501, and the lower window describes the contents of the learning material unit received in S302. Yes. At this time, the upper window of the browser screen 30 is provided with a clickable area 36 so as to surround the contents of the teaching material unit, and the lower window is also clickable area so as to surround the contents of the teaching material unit. 35 is provided. Further, the browser screen 30 at this time includes a “description search” button 31, a “relevant search” button 32, an “exemplary search” button 33, and a “next” button 34. Since the mode flag is switched on, the setting is changed so that the buttons 31 to 34 cannot be clicked.
[0045]
After displaying the two teaching material units on the browser screen 30, the client device 20 waits for the clickable areas 35 and 36 to be clicked (S504). When any of the clickable areas 35 and 36 is clicked, the client device 20 determines which of the upper and lower clickable areas 35 and 36 has been clicked (S505). When the upper clickable area 36 is clicked, the client apparatus 20 transmits a search continuation notification to the learning server apparatus 10 (S506), and transmits v = v + 1 web data for the learning material unit or a search end notification. It waits for it to be received (S501). On the other hand, when the lower clickable area 35 is clicked, the client device 20 transmits a search end notification to the learning server device 10 (S507), and the learning server device 10 transmits a search end confirmation notification in S602. It waits for it to come (S508). Upon receiving the search end confirmation notification, the client device 20 displays only the web page received in S302 on the browser screen, thereby terminating the split display of the browser screen (S509), and the processing of the flowchart of FIG. finish.
[0046]
The learning server device 10 transmits web data for each teaching material to the client device 20 in S613, and then waits for a search continuation notification or a search end notification to be transmitted from the client device 20 (S614). When the learning server device 10 receives the search continuation notification, the learning server device 10 proceeds to the processing for the v = v + 1th learning material unit in the loop L5, and when receiving the search end notification, the learning server device 10 leaves the loop L5. Then, a search end confirmation notification is transmitted to the client device 20 (S602), and the processing of the flowchart of FIG.
[0047]
Since the processing described above is performed, when the student operates the client device 20 and clicks the clickable area 35 of the browser screen 30 in FIG. 18 in which the learning material unit number 11 is displayed, for example. 19, the content of the teaching material unit number 11 is displayed in the lower window, and the content of the learning material unit number 5 having the highest similarity for the teaching material unit is displayed in the upper window.
[0048]
Then, when the student clicks on the clickable area 36 on the upper side of the browser screen 30 in FIG. 19, as shown in the screen example in FIG. The contents are displayed in the upper window of the browser screen 30. Further, when the student clicks the clickable area 36 of the browser screen 30 in FIG. 20, the content of the teaching material unit number 7 having the second highest similarity after the teaching material unit number 3 is displayed in the upper window of the browser screen 30. The
[0049]
When the student clicks the clickable area 35 on the lower side of the browser screen 30 in FIG. 19 or FIG. 20, the split display of the browser screen 30 is terminated, and the state returns to the state in FIG.
[0050]
(Keyword search)
When the learning server device 10 starts executing the keyword search subroutine in S418 of FIG. 10, the learning server device 10 determines whether or not the information received in S413 indicates the “description search” button 31 (S701). If the information is information indicating the “explanation search” button 31, the learning server device 10 executes the explanation search preparation subroutine of FIG. 13.
[0051]
When the learning server device 10 starts executing the explanation search preparation subroutine, the learning server unit 10 reads the keyword (KWi) of the i-th teaching material unit from the keyword DB 12 (S801), The process of the seventh loop L7 is executed while incrementing the variable x indicating the number of loop executions from 1 by 1.
[0052]
In this loop L7, the learning server device 10 determines whether or not the variable x is i (S861). When the variable x is i, the learning server device 10 proceeds to the processing for the next teaching material unit (x = x + 1) in the loop L7, and when the variable x is not i, the learning server device 10 proceeds to x. The explanation keyword (EKWx) of the th teaching material unit is read from the keyword DB 12 (S862). Then, the learning server device 10 compares the keyword (KWi) with the explanation keyword (EKWx), and counts the number of the same keyword. When the count number is one or more, the learning material unit number and the number A record composed of fields is added to the search teaching material unit table (see FIG. 17) (S863). After executing the processing of the loop L7 for every teaching material unit, the learning server device 10 leaves the loop L7. Then, the learning server device 10 sorts the search teaching material unit table in descending order using the number as the first key and the learning material unit number as the second key (S802), ends the processing of the flowchart of FIG. Return to 12 main routine.
[0053]
In S701, when the information received in S413 does not indicate the “explanation search” button 31, the learning server device 10 determines whether the information indicates the “relevant search” button 32 or not. (S703). If the information indicates the “related search” button 32, the learning server device 10 executes the related search preparation subroutine of FIG. 14 (S704). If the information does not indicate the “related search” button 32 (that is, the information indicates the “exemplary search” button 33), the exemplary search preparation subroutine of FIG. 15 is executed (S705). Note that the related search preparation subroutine of FIG. 14 and the exemplary search preparation subroutine of FIG. 15 are almost the same as the explanation search preparation subroutine shown in FIG. 13, with the difference being the related keyword instead of using the explanation keyword. Alternatively, since only the example keyword is used, the description of the related search preparation subroutine and the example search preparation subroutine will be omitted.
[0054]
Then, the learning server device 10 executes the explanation search preparation subroutine, the related search preparation subroutine, or the example search preparation subroutine to create a search teaching material unit table (the total number of records is n), and then the search teaching material unit table. The sixth loop L6 is executed while incrementing the variable w indicating the number of loop executions by 1 for each component from the first row to the n-th row. In this loop L6, the learning server device 10 first determines whether or not the variable w is n + 1 (S711). If the variable w is n + 1, the learning server device 10 transmits a search completion notice to the client device 20 (S712), leaves the loop L6, and ends the similarity search subroutine of FIG. On the other hand, if the variable w is not n + 1, the learning unit web data indicated by the learning unit number in the w (1, 2,..., N) column of the retrieval learning unit table is transmitted to the client device 20 (S713). ).
[0055]
When one client device 20 starts executing the display switching subroutine in S309 in FIG. 10, a search end notification transmitted from the learning server device 10 in S712 or a web transmitted from the learning server device 10 in S713. Data is received (S501). If the client device 20 receives the search end notification (S502: YES), the client device 20 ends the display switching subroutine of FIG. On the other hand, when the client device 20 receives the web data indicating the content of the unit teaching material (S502: NO), the client screen 20 divides the window of the browser screen into two vertically, and the web page received in S302 is displayed on the lower window. The web page received in S501 is displayed in the upper window (S503). A screen example of the browser screen at this time is shown in FIG. Since the browser screen 30 in FIG. 19 has already been described, it will not be described here. By the way, since the flag for the keyword search mode is switched on, the setting of the browser screen is changed so that the buttons 31 to 34 cannot be clicked.
[0056]
After displaying the two teaching material units on the browser screen 30, the client device 20 waits for the clickable areas 35 and 36 to be clicked (S504). Then, when any of the clickable areas 35 and 36 is clicked, the client device 20 determines which of the upper and lower clickable areas 35 and 36 is clicked (S505). When the upper clickable area 36 is clicked, the client device 20 transmits a search continuation notification to the learning server device 10 (S506), and transmits w = w + 1th web data of the learning material unit or a search end notification. It waits for it to be received (S501). On the other hand, when the lower clickable area 35 is clicked, the client device 20 transmits a search end notification to the learning server device 10 (S507), and the learning server device 10 transmits a search end confirmation notification in S706. It waits for it to come (S508). Upon receiving the search end confirmation notification, the client device 20 displays only the web page received in S302 on the browser screen, thereby terminating the split display of the browser screen (S509), and the processing of the flowchart of FIG. finish.
[0057]
The learning server device 10 transmits web data for each teaching material to the client device 20 in S713, and then waits for a search continuation notification or a search end notification to be transmitted from the client device 20 (S714). Then, when the learning server device 10 receives the search continuation notification, the learning server device 10 proceeds to the process for the w = w + 1th learning material unit in the loop L6, and when receiving the search end notification, the learning server device 10 leaves the loop L6. Then, a search end confirmation notification is transmitted to the client device 20, and the processing of the flowchart of FIG.
[0058]
Since the processing described above is performed, when the student operates the client device 20 and clicks the clickable area 35 of the browser screen 30 in FIG. 18 in which the learning material unit number 11 is displayed, for example, As shown in the browser screen 30 of FIG. 19, the content of the teaching material unit number 11 is displayed in the lower window, and the content of the learning material unit number 5 that contains the most explanation (relevant or illustrative) keyword of the teaching material unit is the upper window. Is displayed.
[0059]
When the student clicks on the clickable area 36, the content of the teaching material unit number 3 including the explanation keyword next to the learning material unit number 5 is displayed in the upper window of the browser screen. Further, when the student clicks the clickable area 36 of the browser screen 30 in FIG. 19, the content of the teaching material unit number 1 including the explanation keyword next to the teaching material unit number 3 is displayed in the upper window of the browser screen. The
[0060]
When the student clicks on the clickable area 35 on the lower side of the browser screen 30, the divided display of the browser screen 30 ends, and the state returns to the state of FIG.
[0061]
<Summary>
As described above, when the learning unit is sequentially displayed on the browser screen 30 and the learning proceeds, when an unknown word appears, the user can click the clickable area 35 to change the learning unit and contents. A similar learning material unit can be displayed on the browser screen together with the learning material unit. However, if the clickable area 36 is continuously clicked, the teaching material units can be sequentially displayed in descending order of similarity. Thus, the state where the learned teaching material units are arranged in descending order of similarity corresponds to arranging hit pages. Therefore, the target pages can be searched in the order in which the target pages are assigned from the already learned teaching material units in the same manner as the conventional paper text.
[0062]
Similarly, clicking the buttons 31 to 33 on the browser screen causes the clickable area 36 to appear on the browser screen 30, and if the clickable area 36 is repeatedly clicked, the keyword used in the teaching material unit is selected. The teaching material units are sequentially displayed in the order in which they are explained in detail, in the order related to the keywords used in the teaching material unit, and in the order in which many examples of keywords are used in the teaching material unit. Therefore, the target pages can be searched in the order in which the target pages are assigned from the already learned teaching material units in the same manner as the conventional paper text.
[0063]
(Appendix 1)
A teaching device presenting method in which a server device having a teaching material composed of a plurality of teaching material units in which the course order is defined transmits a higher order teaching material unit to the client device every time it receives request information of the client device on the network. There,
The server device is
A receiving step of receiving predetermined information from the client device when transmitting a teaching material unit to the client device;
When the predetermined information is received in the reception step, a transmission step of transmitting learned learning units lower than the learning material unit to the client device in order of closeness to the learning material unit is executed.
Teaching material presentation method characterized by this.
[0064]
(Appendix 2)
The server device is
In addition to memorizing multiple keywords for each learning material unit,
In the transmission step, the content of the stored keyword is referred to, and the closeness is determined based on the number of matching keywords related to the learning material unit and keywords related to the learning material unit.
The teaching material presenting method according to supplementary note 1, characterized in that:
[0065]
(Appendix 3)
Each time a server device having a learning material composed of a plurality of learning material units in which the course order is defined receives a request from a client device on the network, the server device sends a higher learning material unit to the client device. A display switching method used in a network system that switches a display to a higher learning unit every time the next learning unit is received,
When the client device displays only a certain teaching material unit and receives a predetermined input, it notifies the server device that the predetermined input has been received,
The server device that has received the notification transmits the learning material unit lower than the learning material unit to the client device in order of closeness to the learning material unit,
The client device that has received each learning material unit displays the learning material units in the order received in a position different from the display position of the learning material unit.
Teaching material presentation method characterized by this.
[0066]
(Appendix 4)
The degree of closeness of the learning material unit to the learning material unit is determined by the number of keywords of the learning material unit that the learning material unit has.
The teaching material presenting method according to supplementary note 3, characterized by:
[0067]
(Appendix 5)
The client device accepts the predetermined input in a clickable area surrounding the display position of the learning material unit according to the markup language.
The teaching material presenting method according to supplementary note 3 or 4, characterized in that:
[0068]
(Appendix 6)
The client device accepts input in a clickable area surrounding the display area of the learning material unit according to the markup language, and when the input is made, stops displaying the learning material unit and displays only the learning material unit.
The teaching material presenting method according to appendix 3, 4 or 5, characterized in that:
[0069]
(Appendix 7)
The client device accepts an input in a clickable area surrounding the display position of the teaching material unit according to the markup language when displaying only a certain teaching material unit, and when the input is made, Display the learning material unit at a position different from the display position.
The teaching material presenting method according to any one of appendices 3 to 6, characterized in that:
[0070]
(Appendix 8)
While the client device is accepting the predetermined input, the client device cannot accept an input requesting the higher order teaching material unit to the server device.
The teaching material presenting method according to any one of appendices 3 to 7, characterized in that:
[0071]
【The invention's effect】
As described above, according to the present invention, the target page is searched from the unit pages already learned while tracing the page with the appropriate hit, as in the case of flipping through the text of conventional paper. Can do.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of a system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram showing a data layout of a teaching material DB
FIG. 3 is a schematic diagram showing a data layout of a keyword DB.
FIG. 4 is a schematic diagram showing a data layout of a similarity matrix DB
FIG. 5 is a schematic diagram showing a data layout of an explanatory keyword identifier DB
FIG. 6 is a schematic diagram showing a data layout of an exemplary keyword identifier DB
FIG. 7 is a schematic diagram showing a data layout of a keyword DB classified by function.
FIG. 8 is a flowchart showing similarity matrix DB creation processing;
FIG. 9 is a flowchart showing a keyword DB creation process by function.
FIG. 10 is a flowchart showing processing of an embodiment of the present invention.
FIG. 11 is a flowchart showing processing of an embodiment of the present invention.
FIG. 12 is a flowchart showing processing of an embodiment of the present invention.
FIG. 13 is a flowchart showing an explanation search preparation subroutine.
FIG. 14 is a flowchart showing a related search preparation subroutine.
FIG. 15 is a flowchart showing an example search preparation subroutine.
FIG. 16 is a schematic diagram showing a data layout of a similarity table
FIG. 17 is a schematic diagram showing a data layout of a teaching material unit search table.
FIG. 18: Screen example of browser screen
FIG. 19 shows an example of a browser screen.
FIG. 20 shows an example of a browser screen.
[Explanation of symbols]
10 Learning server device
10P CPU
10M storage unit
10L learning support program
11 Teaching material DB
12 Keyword DB
13 Similarity matrix DB
14 Explanation keyword identifier DB
15 Example keyword identifier DB
16 Keyword DB by function
17 Similarity matrix DB creation program
18 Keyword DB creation program by function
20 Client device
30 Browser screen
31 Description search button
32 Related Search Button
33 Example search button
34 Next button
35 Clickable area
36 Clickable area

Claims (1)

Computer
For each of the plurality of learning material units constituting the learning material, the order information for identifying the order of attendance defined in the learning material unit and the web data for displaying the learning material unit are associated with each other in the storage device . A first storage procedure for storing in one database;
A second storage procedure for storing one or more keywords for each of the plurality of teaching material units in a second database in the storage device;
For each of the plurality of teaching material units, a number in which the keyword in the second database of the teaching material unit matches the keyword in the second database of the teaching material unit whose order is earlier than the teaching material unit. , A third storage procedure for storing in the matrix table in the storage device as the closeness,
When a request for a teaching material unit is received from any client device through the communication device, the teaching material unit web data in the next order of the teaching material unit web data already transmitted to the client device is stored in the first database. A first transmission procedure for reading from the web data and transmitting the read web data to the requesting client device through the communication device;
A receiving procedure for receiving, through a communication device, information indicating that a predetermined input has been received from a client device that has transmitted web data in the first transmission procedure;
When the information is received in the reception procedure, the teaching material unit that is in the order earlier than the teaching material unit of the web data transmitted in the first transmission procedure and has the closest degree to the teaching material unit is extracted from the matrix table. Specific procedures to identify, and
A transmission procedure for transmitting the web data of the teaching material unit specified in the specifying procedure to the client device through the communication device as data for displaying on the same screen as the teaching data unit of the web data transmitted in the first transmission procedure. The teaching material presentation method characterized by performing.

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