CN114816115A - Screen auxiliary assembly for education and teaching - Google Patents

Screen auxiliary assembly for education and teaching Download PDF

Info

Publication number
CN114816115A
CN114816115A CN202210383156.7A CN202210383156A CN114816115A CN 114816115 A CN114816115 A CN 114816115A CN 202210383156 A CN202210383156 A CN 202210383156A CN 114816115 A CN114816115 A CN 114816115A
Authority
CN
China
Prior art keywords
screen
content
page
display screen
computer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210383156.7A
Other languages
Chinese (zh)
Other versions
CN114816115B (en
Inventor
李广垒
王飞
陈祖涛
唐辞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Baoxin Information Technology Co ltd
Original Assignee
Anhui Baoxin Information Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Baoxin Information Technology Co ltd filed Critical Anhui Baoxin Information Technology Co ltd
Priority to CN202210383156.7A priority Critical patent/CN114816115B/en
Publication of CN114816115A publication Critical patent/CN114816115A/en
Application granted granted Critical
Publication of CN114816115B publication Critical patent/CN114816115B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00Handling natural language data
    • G06F40/10Text processing
    • G06F40/166Editing, e.g. inserting or deleting

Abstract

The invention discloses screen auxiliary equipment for education and teaching, and belongs to the field of teaching equipment. A screen auxiliary device for education and teaching comprises a display screen, a touch screen pen and a computer; the display screen displays characters and/or images to be put, receives the pressure signal on the surface of the screen, converts the pressure signal into an electric signal and transmits the electric signal to the computer; the touch screen pen is a touch controller of the display screen, the touch screen pen writes on the display screen to form a pressure signal on the surface of the screen, the written content comprises characters and/or images and/or instruction tracks, and the instruction tracks are operation instructions for processing the projection of the characters and/or images; the method can realize the real modification of electronic data only on the screen by handwriting.

Description

Screen auxiliary assembly for education and teaching
Technical Field
The invention belongs to the field of teaching equipment, and particularly relates to screen auxiliary equipment for education and teaching.
Background
Schools today often use projections instead of the blackboard for writing on blackboard.
Although the projection is clearer and saves the writing time of the teacher, the computer is required to operate each time the contents displayed to the students are changed.
For some teaching materials in frame general PPT, Word and image formats, different teachers have different understandings, and different students need to explain in different degrees, so that the teaching materials in the general format obviously cannot meet the teaching requirements, and teachers need to process the teaching materials on the basis of the general teaching materials, namely, the materials are labeled in detail, frame-type words with little meaning are deleted, difficult knowledge points are drawn and explained, outdated wrong knowledge points are modified, and the like.
The common projection is only connected with a peripheral screen by a computer or indirectly projected on the screen by a projector, or the material content is required to be modified by the computer. The computer modification has the defects that:
1. the computer is generally arranged on a platform, the projection screen is generally arranged on a wall, a teacher needs to face the screen when explaining knowledge points, and the teacher needs to back to the screen when modifying data, so that the action is troublesome;
2. the computer drawing or formula inputting is very troublesome and can be quickly realized without handwriting;
3. teachers with older teachers are less able to operate computers proficiently.
Disclosure of Invention
The invention aims to provide a screen auxiliary device for education and teaching, which can realize real modification of electronic data only on a screen by handwriting.
The invention relates to screen auxiliary equipment for education and teaching, which comprises a display screen, a touch screen pen and a computer, wherein the display screen is arranged on the display screen;
the display screen displays characters and/or images to be put, receives the pressure signal on the surface of the screen, converts the pressure signal into an electric signal and transmits the electric signal to the computer;
the touch screen pen is a touch controller of the display screen, the touch screen pen writes on the display screen to form a pressure signal on the surface of the screen, the written content comprises characters and/or images and/or instruction tracks, and the instruction tracks are operation instructions for processing the projection of the characters and/or images;
the computer is internally provided with a virtual data page, the data page stores characters and/or images to be put in, the computer puts the content of the data page on the display screen, the computer receives an electric signal input by the display screen, the computer identifies the electric signal corresponding to the characters and/or images and directly or indirectly adds the content of the characters and/or images on the original data page to update the data page, and the computer identifies the electric signal corresponding to the instruction track and operates the picture put on the display screen according to the content of the instruction;
the computer identifies the content thrown on the display screen and divides the text part and the image part into different blocks for throwing, wherein the text part is provided with at least one block, and the image part is provided with at least one block;
the content of the instruction comprises any one or combination of more of separation, movement, scaling, single column, combination, deletion or addition of pictures thrown by each block.
As a further improvement of the invention, the display screen of the display screen comprises a data area and an operation area, the content of the data page is put in the data area in equal proportion when the data area is in an initial state, and the operation area is blank when the operation area is in the initial state; a virtual release page is arranged in the computer, the release page stores the content of the display picture after operation, and the content after operation is displayed on the release page in an equal-scale scaling manner; and after the updating of the display screen is stopped or the operation is confirmed to be finished, replacing the content of the release page with the data page, and emptying the release page.
As a further improvement of the present invention, the pages of material are stored with different fonts or color labels after the update than before the update.
As a further improvement of the invention, the computer defines the range of the divided blocks through the content of the frame selection of the touch screen pen.
As a further improvement of the invention, the frame of the selected character part block is composed of straight line segments; the frame of the selected image portion block is formed by a curved line segment or a combination of a curved line segment and a straight line segment.
As a further improvement of the invention, when the computer receives an operation instruction, the content of the data page is copied into the release page, then the content operation is carried out in the release page according to the instruction, and the content of the release page is projected on a display picture of the display screen in real time; and after the contents are input by the release page, the display screen of the display screen displays the contents of the release page and covers the contents of the data page.
As a further improvement of the invention, when the command block puts the picture to carry out single-row and/or zooming operation, newly building a putting page; the operation on the content in the plurality of release pages is independent; and on the display screen, the screen of the newly-built release page is arranged on the screen of the release page in the preamble.
As a further improvement of the invention, in the initial state, the computer autonomously identifies the character part and the image part in the data page and divides the character part and the image part into blocks; all text portions are divided into a single block and all image portions are divided into a single block.
As a further improvement of the invention, the updated document page is scaled according to the content coverage range recorded in the document page, so that the document page can record all the content without changing the size.
As a further improvement of the invention, after any one of the operations of separating, moving, deleting or adding the blocks of the text parts, the computer automatically merges all the text parts into one block, and the position of the text parts on the display screen is unchanged.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the instruction is input on the display screen in a handwriting manner, so that the computer can modify the displayed content without moving back and forth between the screen and the computer, and the pressure of a teacher is relieved;
according to the method, the virtual release page is arranged in the computer, the operation instruction input by a teacher on a display screen is fed back to modify the content on the release page, and the data is not directly modified on the data page, so that the disorder of the original and the modified data of the data is avoided, and the data difficulty of the computer is also reduced; the operability of modifying the data in the data page is further ensured, and the data page can not be directly modified because the data page is generally in the formats of PPT, Word, image and the like in a general way;
the invention separates, moves, zooms, lists, merges, deletes or adds the block characters on the screen, which is convenient and rapid, and can add notes in the whole document to be easy to understand, move the content position of the document to make the document more smooth and reasonable, list a sentence of characters or a certain image to deepen the impression, enlarge the sentence of characters or the certain image to be easy to see by students, etc.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The first embodiment is as follows: referring to fig. 1, a screen assistant apparatus for education and teaching includes a display screen, a stylus pen and a computer.
The display screen displays the characters and images to be put, receives the pressure signal on the surface of the screen, converts the pressure signal into an electric signal and transmits the electric signal to the computer.
The touch screen pen is a touch controller of the display screen, the touch screen pen writes on the display screen to form a pressure signal on the surface of the screen, the written content comprises characters, images and an instruction track, and the instruction track is an operation instruction for processing the projection of the characters and the images.
A virtual data page is arranged in the computer, the data page stores characters and images to be put, and the computer puts the content of the data page on a display screen; a virtual release page is arranged in the computer, the release page stores the content of a display picture of the display screen after operation, and the content after operation is displayed on the release page in an equal-scale scaling manner;
the display screen comprises a data area and an operation area, wherein the content of a data page is put in the data area in equal proportion in an initial state, and the blank content is presented in the operation area in the initial state; after the display picture stops updating or the operation is confirmed to be finished, replacing the content of the release page with the data page, and emptying the release page;
after receiving the electric signal input by the display screen, the computer copies the content of the data page into the release page, then performs content operation in the release page according to the instruction, and projects the content of the release page on the display picture of the display screen in real time; after the input content of the release page, the display screen of the display screen displays the content of the release page and covers the content of the data page on the display screen; the computer receives and identifies electric signals corresponding to characters and images written on the display screen by the touch screen pen, copies the contents of the corresponding characters and images into the input page, replaces the updated data page after the input page is modified, and inputs the contents of the data page into the display screen; the computer identifies the electric signal corresponding to the instruction track and operates the content in the release page according to the content of the instruction; the pages of material are stored with different fonts or color labels after the update than before the update.
In the initial state, the computer identifies the character part and the image part in the data page and divides the character part and the image part into blocks; all the character parts are divided into single blocks, and all the image parts are divided into single blocks; after the initial content of the data page is put on the display screen, a teacher can select the text and the image content by a touch screen pen in a frame mode, and subdivides blocks of the text part and blocks of the image part, namely the text part can be divided into a plurality of blocks, and the image part can be divided into a plurality of blocks; wherein, the frame of the selected character part block is composed of straight line segments; the frame of the selected image part block is formed by combining a curve segment and a straight line segment, and the computer identifies whether the framed content is a character or an image; it should be noted that the technology for automatically recognizing text and images by a computer is well known in the prior art, and is not described herein;
the content of the instructions output by the touch screen pen comprises the steps of separating, moving, zooming, single-column, merging, deleting and adding the pictures thrown by the blocks.
Splitting, which means dividing a block into a plurality of small blocks, taking the text part as an example, the specific operation steps are as follows: the method is characterized in that a vertical line is drawn behind a character or a punctuation, because of the inherent writing and typesetting mode of the Chinese characters, the Chinese characters are always arranged in a determinant, the vertical line is added behind the character or the punctuation, the character content behind the vertical line is represented as a block, and the character content in front of the vertical line is represented as another block, so that the method is convenient;
the moving means that a certain block is moved so as to better display the block and facilitate the subsequent other operations, and as the display picture of the display screen comprises a data area and an operation area, the moved block can be dragged into the operation area for storage, thereby avoiding the problem of blurred vision caused by overlapping with other blocks;
zooming, namely zooming the block in size after the block is moved into the operation area, so that the content of the block is more easily seen, and the impression is deepened;
the single row means that a certain block is independently stored in a newly-built release page, the operation on the content in a plurality of release pages is independent, and the picture of the newly-built release page is arranged on the picture of the release page in the preamble on the display screen, so that the content of the block in the single row can be independently stored, and the detailed explanation on the content is facilitated;
merging, namely combining two different blocks together in a moving mode, so that different knowledge points are combined together for learning, and thinking and associative learning are developed conveniently; taking the text content as an example, the specific operation steps are as follows: placing the blocks of the two character parts end to end in a moving mode, drawing a bidirectional arrow at the joint to show that the two blocks are combined;
the deletion refers to deleting part of the content in a certain block, taking the text content as an example, the specific operation steps are as follows: drawing a horizontal line on a certain sentence and/or punctuation, wherein the horizontal line is crossed with the characters, the crossed part of the content is deleted, and the characters behind the horizontal line are automatically extracted to the deleted content, thereby being beneficial to deleting the content irrelevant to the taught knowledge point, being convenient for learning a certain knowledge point independently and avoiding misleading students to learn due to the occurrence of the knowledge point with the possibility of understanding deviation;
adding, namely adding new content into the content of the block, wherein the newly added content can be characters or images; taking the text content as an example, the specific operation steps are as follows: drawing an arrow at the position where the characters need to be added, writing the character contents needing to be added at the leading-out position of the arrow, supplementing the added character contents to the arrow indicating position after the completion of the writing, and automatically arranging the characters behind the arrow indicating position backwards so as to ensure that the added characters are correctly typeset; taking the image content as an example, the specific operation steps are as follows: drawing an arrow at the position where the image needs to be added, drawing image content needing to be added at the leading-out position of the arrow, taking the completed image as an independent block, and moving the image freely to avoid influencing the reading convenience of characters in the character typesetting, wherein the image can be moved to the side of the characters to be used as annotation; it should be noted that, a block may also be dragged at the leading-out position of the arrow, and when the block is placed at the leading-out position of the arrow, the computer automatically recognizes the characters and images in the block, and if only the characters exist, the characters are filled in the arrow indicating position, and if the image is included, the block is regarded as a separate block.
The updated document page performs the scaling of the content font size according to the content coverage range recorded by the document page, so that the document page records all the content without changing the size, and the problem that the added content cannot be put into the document page with the original size due to the addition of too much content in the put-in page is avoided.
In addition, after any one of the operations of separating, moving, deleting or adding the blocks of the character parts, the computer automatically merges all the character parts into one block, and the position of the character parts on the display screen is unchanged; the problem that a certain block is moved to the position due to the fact that a touch screen pen touches the screen by mistake is solved.
The second embodiment is as follows: different from the first embodiment, the content of the data page is identified by the computer and divided into a text block and an image block, and then the data page is put on the display screen, in order to avoid that the text of partial interpretation images is included in the text block by mistake, in the embodiment, the computer does not actively identify the content in the data page, the computer firstly projects the content of the data page on the display screen, a teacher manually divides the content of the data page into blocks, and the text for interpreting the images is summarized into the image block; the method for dividing the blocks uses a frame selection method, which is consistent with the method of the first embodiment;
before the frame selection method is carried out, a set track is drawn on a screen, such as: the "start" can be performed by the frame selection method; after the selection is finished, a set track is drawn on the screen, such as 'end', and the division of the blocks can be finished.
The third concrete embodiment: on the basis of the first embodiment, if no pressure signal is input for 3min on the display screen, automatically combining all the character parts into one block, and automatically combining all the image parts into one block; or draw a set track on the screen, such as "combine", to complete the combination of the corresponding blocks.

Claims (10)

1. The utility model provides a screen auxiliary assembly for education and teaching which characterized in that: the touch screen pen comprises a display screen, a touch screen pen and a computer;
the display screen displays characters and/or images to be put, receives the pressure signal on the surface of the screen, converts the pressure signal into an electric signal and transmits the electric signal to the computer;
the touch screen pen is a touch controller of the display screen, the touch screen pen writes on the display screen to form a pressure signal on the surface of the screen, the written content comprises characters and/or images and/or instruction tracks, and the instruction tracks are operation instructions for processing the projection of the characters and/or images;
the computer is internally provided with a virtual data page, the data page stores characters and/or images to be put in, the computer puts the content of the data page on the display screen, the computer receives an electric signal input by the display screen, the computer identifies the electric signal corresponding to the characters and/or images and directly or indirectly adds the content of the characters and/or images on the original data page to update the data page, and the computer identifies the electric signal corresponding to the instruction track and operates the picture put on the display screen according to the content of the instruction;
the computer identifies the content thrown on the display screen and divides the text part and the image part into different blocks for throwing, wherein the text part is provided with at least one block, and the image part is provided with at least one block;
the content of the instruction comprises any one or combination of more of separation, movement, scaling, single column, combination, deletion or addition of pictures thrown by each block.
2. A screen aid for educational teaching according to claim 1, wherein: the display screen comprises a data area and an operation area, wherein the content of a data page is put in the data area in an equal proportion in an initial state, and the operation area is blank in the initial state; a virtual release page is arranged in the computer, the release page stores the content of the display picture after operation, and the content after operation is displayed on the release page in an equal-scale scaling manner; and after the updating of the display screen is stopped or the operation is confirmed to be finished, replacing the content of the release page with the data page, and emptying the release page.
3. A screen aid for educational teaching according to claim 2, wherein: the pages of material are stored with different fonts or color labels after the update than before the update.
4. A screen aid for educational teaching according to claim 1, wherein: and the computer defines the range of the divided blocks through the content of the frame selection of the touch screen pen.
5. A screen aid for educational teaching according to claim 4, wherein: the frame of the selected character part block is composed of straight line segments; the frame of the selected image portion block is formed by a curved line segment or a combination of a curved line segment and a straight line segment.
6. A screen aid for educational teaching according to claim 2, wherein: when the computer receives an operation instruction, copying the content of the data page into a release page, then performing content operation in the release page according to the instruction, and projecting the content of the release page on a display screen in real time; and after the contents are input by the release page, the display screen of the display screen displays the contents of the release page and covers the contents of the data page.
7. A screen aid for educational teaching according to claim 2, wherein: when the command commands the block launched picture to carry out single-row and/or zooming operation, newly building a launched page; the operation on the content in the plurality of release pages is independent; and on the display screen, the screen of the newly-built release page is arranged on the screen of the release page in the preamble.
8. A screen aid for educational teaching according to claim 1, wherein: in the initial state, the computer identifies the character part and the image part in the data page and divides the character part and the image part into blocks; all text portions are divided into a single block and all image portions are divided into a single block.
9. A screen aid for educational teaching according to claim 2, wherein: the updated document page performs the scaling of the content font size according to the content coverage range recorded in the document page, so as to record all the content without changing the size of the document page.
10. A screen aid for educational teaching according to claim 8, wherein: after any one of the operations of separating, moving, deleting or adding the blocks of the character parts, the computer automatically merges all the character parts into one block, and the position of the character parts on the display screen is unchanged.
CN202210383156.7A 2022-04-13 2022-04-13 Screen auxiliary assembly for education and teaching Active CN114816115B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210383156.7A CN114816115B (en) 2022-04-13 2022-04-13 Screen auxiliary assembly for education and teaching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210383156.7A CN114816115B (en) 2022-04-13 2022-04-13 Screen auxiliary assembly for education and teaching

Publications (2)

Publication Number Publication Date
CN114816115A true CN114816115A (en) 2022-07-29
CN114816115B CN114816115B (en) 2023-01-17

Family

ID=82535018

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210383156.7A Active CN114816115B (en) 2022-04-13 2022-04-13 Screen auxiliary assembly for education and teaching

Country Status (1)

Country Link
CN (1) CN114816115B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW495681B (en) * 1999-12-24 2002-07-21 Inventec Corp Multimedia computer-assisted instruction system
CN101877180A (en) * 2009-11-18 2010-11-03 北京同方瑞博数字技术有限公司 Multi-media electronic reciprocal teaching system
CN103576988A (en) * 2012-08-09 2014-02-12 株式会社理光 Image processing apparatus, image processing system and image processing method
US20150084894A1 (en) * 2013-09-24 2015-03-26 Samsung Electronics Co., Ltd. System and method of sharing object based on knocking input
CN105632266A (en) * 2016-03-30 2016-06-01 苏州点通教育科技有限公司 Classroom teaching interaction system and method
CN105667136A (en) * 2014-11-20 2016-06-15 郑俊 Multifunctional interaction type intelligent multimedia electronic blackboard technology
CN105679129A (en) * 2016-03-30 2016-06-15 苏州点通教育科技有限公司 Classroom teaching tablet computer and intelligent pen interaction system and method
CN110517758A (en) * 2013-10-04 2019-11-29 三星电子株式会社 Show equipment and the image display method using the display equipment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW495681B (en) * 1999-12-24 2002-07-21 Inventec Corp Multimedia computer-assisted instruction system
CN101877180A (en) * 2009-11-18 2010-11-03 北京同方瑞博数字技术有限公司 Multi-media electronic reciprocal teaching system
CN103576988A (en) * 2012-08-09 2014-02-12 株式会社理光 Image processing apparatus, image processing system and image processing method
US20150084894A1 (en) * 2013-09-24 2015-03-26 Samsung Electronics Co., Ltd. System and method of sharing object based on knocking input
CN110517758A (en) * 2013-10-04 2019-11-29 三星电子株式会社 Show equipment and the image display method using the display equipment
CN105667136A (en) * 2014-11-20 2016-06-15 郑俊 Multifunctional interaction type intelligent multimedia electronic blackboard technology
CN105632266A (en) * 2016-03-30 2016-06-01 苏州点通教育科技有限公司 Classroom teaching interaction system and method
CN105679129A (en) * 2016-03-30 2016-06-15 苏州点通教育科技有限公司 Classroom teaching tablet computer and intelligent pen interaction system and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吕薪秀等: "希沃白板在中学地理教学中的应用——以"地球的宇宙环境"为例", 《中学地理教学参考》 *

Also Published As

Publication number Publication date
CN114816115B (en) 2023-01-17

Similar Documents

Publication Publication Date Title
CN102880360B (en) Infrared type multi-point interaction electric whiteboard system and blank Projection surveying method
KR102381801B1 (en) Systems and methods for guiding handwriting input
EP2359230B1 (en) Background archiving and presentation method
US20070218430A1 (en) Calligraphy practicing system
KR20180048774A (en) System and method of digital note taking
DE202013012795U1 (en) Devices for creating multimedia presentation prototypes
CN104882033B (en) A kind of interactive electronic panel assembly and the method for effectively utilizing electronic teaching resource
US10984671B2 (en) Information display apparatus, information display method, and computer-readable recording medium
CN101334937A (en) Electronic calculator and method of controlling the calculator
CN111399791A (en) Electronic blackboard-writing multi-screen display system and method based on same PC
JP2019113803A (en) Chinese character learning device
CN113093938B (en) Method and device for realizing writing and erasing simultaneously and terminal equipment
CN114816115B (en) Screen auxiliary assembly for education and teaching
CN113485570A (en) Multi-user writing method and device, computer readable storage medium and terminal equipment
CN210667229U (en) Intelligent blackboard capable of realizing writing and memory
CN111897980A (en) Intelligent teaching platform based on calligraphy resource digital experience and use method thereof
JP2007187913A (en) Network screen system for education
CN113177026B (en) Live-broadcasting bullet screen learning note management method based on teaching video
JPH0273483A (en) Input device for on-line handwritten character
JP2013045409A (en) Learning supporter support program
CN113515337A (en) Calligraphy teaching method, device, system and storage medium
TW200951873A (en) Dynamic calligraphy writing system
CN113326813A (en) Electronic format conversion method for mathematics classroom blackboard writing
JP6153299B2 (en) Display processing apparatus, display processing method, display processing program, and recording medium
KR20130130396A (en) Method for producing educational material and educational material system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant