CN2620334Y - Mathematics teaching appliance for lower grades of primary school - Google Patents
Mathematics teaching appliance for lower grades of primary school Download PDFInfo
- Publication number
- CN2620334Y CN2620334Y CN03222345.5U CN03222345U CN2620334Y CN 2620334 Y CN2620334 Y CN 2620334Y CN 03222345 U CN03222345 U CN 03222345U CN 2620334 Y CN2620334 Y CN 2620334Y
- Authority
- CN
- China
- Prior art keywords
- rotating disk
- students
- turntable
- tool
- tool body
- 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.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
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- Electrically Operated Instructional Devices (AREA)
Abstract
Disclosed is a mathematical learning tool for elementary junior class students, suitable for elementary junior class students to study mathematical, in particular to a study tool for quick basic calculation of addition, subtraction, multiplication and division. The study tool is composed of a rectangular tool body 1and a number strip4; two rows of number display windows2 arranged on the upper surface of the tool body; two communicating runners3 are arranged from the left to the right below the middle display window2 of the tool body; the number strip is inserted into the runners; a turntable6 and a turntable display window5 are arranged on the tool body and the marks on the turntable are showed from the turntable display window; the numbers on the number strip are showed from the number display windows; the numbers on the number strips are respectively from zero to ten and from eleven to twenty; the turntable is provided with marks of addition, subtraction, multiplication and division. Based on the age characteristics and the understanding level of junior class students, the utility model is designed to help the students experience the learning process, gather experiences in mathematical learning activities, improve the calculating ability of the students and lay a foundation for abstract thinking.
Description
One, technical field
The utility model is a kind of learning aid that is applicable to primary grades student learning mathematics, especially a kind of be applicable to substantially add, subtract, learning aid that multiplication and division is calculated usefulness quickly.
Two, background technology
The mathematical education of primary grades is generally all carried out with form intuitively, have several as certain article, add several equal what etc., form with the material object performance is more, also be to be illustrated as the master with teacher during teaching demonstration, student oneself can not participate in person, this form of teaching, not only the pupil can not get the exercise of abstract thinking, and oneself also is provided with the chance of taking action on one's own to participate in.
Three, summary of the invention
1, technical matters
Goal of the invention of the present utility model provides a kind of primary grades mathematics learning aid simple in structure, that the student easily grasps, teaching efficiency is good.
2, technical scheme
The digital learning aid of the new primary grades of this practicality, formed by learning aid body and digital bar, the learning aid body is rectangular-shaped, be provided with two rows at the upper surface of body and show the number windows, below the apparent several windows in the middle of body, be provided with two chutes of being used to lead to the right from the left side, digital bar just is inserted in this chute, also be provided with rotating disk and rotating disk display window on body, the symbol on the rotating disk is shown that by the rotating disk display window numeral on the digital bar shows by showing the number window.Numeral on the two radical code-bars is respectively 0～10 and 11～20.Rotating disk is provided with+,-, *, the symbol of ÷.
3, beneficial effect
The utility model is according to the students of the junior years' the age characteristics and the level of understanding thereof, for the student provides abundant mathematical studying mode, allow the student experience the process of study, the experience of accumulation mathematical activity helps the student to set up the notion of number, understand quantitative relation and processing, improve student's computing power, set up the basis of abstract thinking, help the student to mind how you go the first step of learning mathematics, in addition, this learning aid is simple in structure, the student easily grasps, produce and use all very convenient.
Four, description of drawings
Fig. 1 is a general structure synoptic diagram of the present utility model, body 1 wherein arranged, show number windows 2, chute 3, digital bar 4, rotating disk display window 5, rotating disk 6,
Five, embodiment
Primary grades of the present utility model mathematics learning aid, formed by learning aid body 1 and digital bar 4, learning aid body 1 is rectangular-shaped, be provided with two rows at the upper surface of body 1 and show number windows 2, below the apparent several windows 2 in the middle of body 1, be provided with two chutes of being used to lead to 3 to the right from the left side, digital bar 4 just is inserted in this chute 3, also be provided with rotating disk 6 and rotating disk display window 5 on body 1, the symbol on the rotating disk 6 is shown that by rotating disk display window 5 numeral on the digital bar 4 shows by showing number window 2.
Wherein digital bar is two sheet card articles that can horizontally slip in chute 3, is printed on digit on its surface, and wherein an order is printed on 0～10, and another root is printed on 11～20 in proper order, and each numeral is aimed at one and shown number window 2; Rotating disk 6 be provided with "+,-, *, ÷ " symbol, rotate rotating disk, symbol on the rotating disk is demonstrated by rotating disk display window 5 respectively, and during use, the number that number certain window corresponding with next row that the some windows of a last row show shows is done the computing of rotating disk display window symbols displayed.During manufacturing, body is by up and down two parts injection mo(u)lding respectively, and rotating disk is put into up and down between two parts of body, and then merges two parts up and down of body fixing, digital bar is made by plastics or paper card, and the chute that digital bar is inserted in the body is promptly formed the utility model at last.
Claims (3)
1, a kind of primary grades mathematics learning aid, it is characterized in that this learning aid is made up of learning aid body (1) and digital bar (4), learning aid body (1) is rectangular-shaped, upper surface at body (1) is provided with the apparent number of two rows window (2), below apparent several windows (2) in the middle of body (1), be provided with two chutes of being used to lead to (3) to the right from the left side, digital bar (4) just is inserted in this chute (3), on body (1), also be provided with rotating disk (6) and rotating disk display window (5), symbol on the rotating disk (6) is shown that by rotating disk display window (5) numeral on the digital bar (4) shows by showing number window (2).
2, primary grades according to claim 1 mathematics learning aid is characterized in that the numeral on the two radical code-bars (4) is respectively 0～10 and 11～20.
3, primary grades according to claim 1 mathematics learning aid, it is characterized in that rotating disk (6) be provided with+,-, *, the symbol of ÷.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03222345.5U CN2620334Y (en) | 2003-06-03 | 2003-06-03 | Mathematics teaching appliance for lower grades of primary school |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03222345.5U CN2620334Y (en) | 2003-06-03 | 2003-06-03 | Mathematics teaching appliance for lower grades of primary school |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620334Y true CN2620334Y (en) | 2004-06-09 |
Family
ID=34245197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03222345.5U Expired - Fee Related CN2620334Y (en) | 2003-06-03 | 2003-06-03 | Mathematics teaching appliance for lower grades of primary school |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620334Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575262A (en) * | 2014-08-29 | 2015-04-29 | 刘聪 | Number display device |
-
2003
- 2003-06-03 CN CN03222345.5U patent/CN2620334Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575262A (en) * | 2014-08-29 | 2015-04-29 | 刘聪 | Number display device |
| CN104575262B (en) * | 2014-08-29 | 2018-02-23 | 刘聪 | A kind of number display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |