CN2079784U - Dolygon teaching aid - Google Patents
Dolygon teaching aid Download PDFInfo
- Publication number
- CN2079784U CN2079784U CN 90204702 CN90204702U CN2079784U CN 2079784 U CN2079784 U CN 2079784U CN 90204702 CN90204702 CN 90204702 CN 90204702 U CN90204702 U CN 90204702U CN 2079784 U CN2079784 U CN 2079784U
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- CN
- China
- Prior art keywords
- teaching aid
- teaching
- model
- utility
- chi
- 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.)
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Abstract
The utility model relates to a teaching aid for the geometry, mainly comprising a plurality of edge rulers carved with slots and graduations, connection elements, etc. The members can form a discretional assembled and changeable demonstration teaching aid for polygons. The utility model has the function of simultaneously demonstrating characters of triangles, various polygons, internal bisectors, middle lines, vertical lines, etc., by combining with the taught contents. The utility model has the positive function of promoting to teach and improving the teaching effect and the teaching efficiency and has the appreciable social and economic benefit owing to the simple structure, the low cost and the stronger practicability.
Description
Relate to a kind of how much teaching aids, the polygonal teaching aid of particularly a kind of relevant demonstration.
When in several teaching, lecturing triangle and polygon,, often to need repeatedly and continually on blackboard, to map, can reach the purpose of giving lessons according to content because of there not being convenient teaching aid intuitively.So teaching, efficient is lower on the one hand, and teachers work intensity is big and environment is poor, is an impediment to the improvement of teaching environment and the raising of quality of instruction.For this reason, the purpose of this utility model is intended to overcome above-mentioned deficiency and designs a kind of teaching aid that can make things convenient for the above arbitrary polygon of freely ocular demonstration triangle.
This teaching aid mainly contains formations such as limit chi more than three and connector.At the two ends of limit chi with connector each hinged at least more than one and make the closed limit chi that connects with connector, and can constitute arbitrary polygons such as three limits (angle) shape, quadrilateral, pentagon according to any commissural flange chi of needs.One end of each limit chi all is shaped on one section can be for the groove of connector along the blade slip, and the effect one of this groove is to can be used for regulating polygonal shape, and the 2nd, telescopic slide changes the length of side arbitrarily.As being example,, can constitute following arbitrary figure as long as turn connector and slide and change its position along blade with the quadrilateral;
As for three limits (angle) shape and other polygonal functions of use explanation are omitted.
The utlity model has the characteristics of ingenious, simple in structure, the cheap for manufacturing cost and stronger practicality of design, positive role is all arranged promoting teaching and raising teaching efficiency and efficient.As at annexes such as blade subscript scale making and use elastic strings, can conveniently lecture contents such as bisector, center line, vertical line, to enlarge the functions of use of this teaching aid.This teaching aid not only is used for teacher's teaching and also can be used for the student, has the popularity of one-object-many-purposes.
A kind of preferred embodiment is proposed in conjunction with the accompanying drawings.The limit chi is all used the colored plastic die forming, also should be shaped on scale except that being shaped on hinge hole and chute in advance.For being convenient for carrying and assembling figure, the connection between each chi all uses dish-shaped screw hinged.Accompanying drawing provides a kind of structural representation of demonstrating the quadrilateral teaching aid, wherein, and 1,2,3,4--limit chi 5--dish screw
Claims (1)
1, a kind of how much teaching aids comprise a plurality of limits chi and connector etc., it is characterized in that with connector three two ends with the top chi being hinged to the polygon of a closure, and wherein, an end of each limit chi is shaped on one section groove that can slide along blade for connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90204702 CN2079784U (en) | 1990-04-10 | 1990-04-10 | Dolygon teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90204702 CN2079784U (en) | 1990-04-10 | 1990-04-10 | Dolygon teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2079784U true CN2079784U (en) | 1991-06-26 |
Family
ID=4885621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90204702 Withdrawn CN2079784U (en) | 1990-04-10 | 1990-04-10 | Dolygon teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2079784U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093668A (en) * | 2013-02-06 | 2013-05-08 | 胡书华 | Polygonal dynamic demonstration teaching aid |
| CN106781887A (en) * | 2017-02-04 | 2017-05-31 | 邓启民 | A kind of teaching planar pattern demonstration device |
-
1990
- 1990-04-10 CN CN 90204702 patent/CN2079784U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093668A (en) * | 2013-02-06 | 2013-05-08 | 胡书华 | Polygonal dynamic demonstration teaching aid |
| CN106781887A (en) * | 2017-02-04 | 2017-05-31 | 邓启民 | A kind of teaching planar pattern demonstration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |