CN203038521U - Rectangular area and triangle angle demonstrating device for primary school mathematics - Google Patents
Rectangular area and triangle angle demonstrating device for primary school mathematics Download PDFInfo
- Publication number
- CN203038521U CN203038521U CN 201320053214 CN201320053214U CN203038521U CN 203038521 U CN203038521 U CN 203038521U CN 201320053214 CN201320053214 CN 201320053214 CN 201320053214 U CN201320053214 U CN 201320053214U CN 203038521 U CN203038521 U CN 203038521U
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- rectangular area
- primary school
- triangle
- school mathematics
- panel
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Abstract
The utility model provides a rectangular area and triangle angle demonstrating device for primary school mathematics and belongs to a mathematics teaching and demonstrating tool, especially a rectangular area and triangle angle demonstrating device for primary school mathematics. The rectangular area and triangle angle demonstrating device for primary school mathematics includes a face board, scales, a magnet, rectangular iron sheets, triangle iron sheets, a storage box, adjustable support leg, fixing bolts and an angular scale. The rectangular area and triangle angle demonstrating device for primary school mathematics is characterized in that the upper edge, the left edge and the right edge of the face board are provided with the scales provided with length marks respectively. The angular scale indicating triangle angles is arranged in the central position of the face board. The face board is a double-deck structure. The magnet is arranged between two layers of the face board. The storage box is arranged below the face board. The rectangular iron sheets and the triangle iron sheets are disposed in the storage box. The areas of the rectangular iron sheets are 1 square centimeter respectively. The adjustable support legs are disposed below the storage box. And the adjustable support legs are provided with the fixing bolts. The rectangular area and triangle angle demonstrating device for primary school mathematics is simple in structure and convenient to manufacture.
Description
Technical field
The utility model belongs to mathematical education demonstration articles for use, particularly primary school mathematics rectangular area and triangular angles apparatus for demonstrating.
Background technology
Current, in primary school math teaching, the maths demonstration teaching aid is less, and such as running into rectangular area and triangular angles when teaching, the old commander in chief need be in the blackboard figure demonstrating content of courses of drawing; Because students ' age is little, simple writing is unfavorable for student's understanding, so results of learning are relatively poor.If employing teaching demonstration teaching aid can not only solve the problem in the teaching, can also improve the enthusiasm of student's study, from face development student's intelligence, advance face and improve the quality of teaching.
Summary of the invention
The utility model overcomes the problems referred to above, and a kind of primary school mathematics rectangular area and triangular angles apparatus for demonstrating are provided, and this apparatus for demonstrating is simple in structure, and is easy to make.The utility model is achieved in that primary school mathematics rectangular area and triangular angles apparatus for demonstrating comprise panel, scale mark, magnet, squares and triangles iron plate, case, adjustable supporting leg, set bolt, angle measuring calibration line, it is characterized in that: upper edge and left and right sides edge at panel are respectively equipped with the scale mark that indicates length, be provided with the angle measuring calibration line that indicates triangular angles in the panel centre position, described panel is double-decker, is provided with magnet between panel two-layer; Be provided with case below described panel, be placed with the triangle iron plate of several squares and different angles in the case, the area of each square iron plate is one square centimeter; Be provided with adjustable supporting leg below said case, adjustable formula supporting leg is provided with set bolt.
Primary school mathematics rectangular area and triangular angles apparatus for demonstrating, simple in structure, easy to make.During concrete the use, when rectangular area of explanation, be 4 centimetres such as length, wide 3 centimetres, be one square centimeter square iron plate to put area at panel just at this moment, the number by several square iron plates obtains rectangular area; When needs are measured the angle at each angle of triangle, directly triangle is placed on the angle measuring calibration line, can draw the angle of institute's angulation, very directly perceived, be convenient to understand; The setting of adjustable supporting leg can be regulated this height of devices arbitrarily, the convenient full student of class, and especially back row student's watches.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model; Panel 1, scale mark 2, magnet 3, squares and triangles iron plate 4, case 5, adjustable supporting leg 6, set bolt 7, angle measuring calibration line 8.
Embodiment
Embodiment by reference to the accompanying drawings, primary school mathematics rectangular area and triangular angles apparatus for demonstrating, be achieved in that the utility model comprises panel 1, scale mark 2, magnet 3, squares and triangles iron plate 4, case 5, adjustable supporting leg 6, set bolt 7, angle measuring calibration line 8, it is characterized in that: upper edge and left and right sides edge at panel 1 are respectively equipped with the scale mark 2 that indicates length, be provided with the angle measuring calibration line 8 that indicates triangular angles in panel 1 centre position, described panel 1 is double-decker, is provided with magnet 3 between panel 1 two-layer; Be provided with case 5 below described panel 1, be placed with the triangle iron plate 4 of several squares and different angles in the case 5, the area of each square iron plate is one square centimeter; Be provided with adjustable supporting leg 6 below said case 5, adjustable formula supporting leg 6 is provided with set bolt 7.
Primary school mathematics rectangular area and triangular angles apparatus for demonstrating, simple in structure, easy to make.During concrete the use, when rectangular area of explanation, be 4 centimetres such as length, wide 3 centimetres, be one square centimeter square iron plate to put area at panel 1 just at this moment, the number by several square iron plates obtains rectangular area; When needs are measured the angle at each angle of triangle, directly triangle is placed on the angle measuring calibration line 8, can draw the angle of institute's angulation, very directly perceived, be convenient to understand; The setting of adjustable supporting leg 6 can be regulated this height of devices arbitrarily, the convenient full student of class, and especially back row student's watches.
Claims (1)
1. primary school mathematics rectangular area and triangular angles apparatus for demonstrating, comprise panel, scale mark, magnet, squares and triangles iron plate, case, adjustable supporting leg, set bolt, angle measuring calibration line, it is characterized in that: upper edge and left and right sides edge at panel are respectively equipped with the scale mark that indicates length, are provided with the angle measuring calibration line that indicates triangular angles in the panel centre position; Panel is double-decker, is provided with magnet between panel two-layer; Below panel, be provided with case, be placed with the triangle iron plate of several squares and different angles in the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053214 CN203038521U (en) | 2013-01-31 | 2013-01-31 | Rectangular area and triangle angle demonstrating device for primary school mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053214 CN203038521U (en) | 2013-01-31 | 2013-01-31 | Rectangular area and triangle angle demonstrating device for primary school mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038521U true CN203038521U (en) | 2013-07-03 |
Family
ID=48690619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320053214 Expired - Fee Related CN203038521U (en) | 2013-01-31 | 2013-01-31 | Rectangular area and triangle angle demonstrating device for primary school mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617756A (en) * | 2013-12-17 | 2014-03-05 | 曹雨晴 | Demonstrator for verifying surface area formula of ball |
-
2013
- 2013-01-31 CN CN 201320053214 patent/CN203038521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617756A (en) * | 2013-12-17 | 2014-03-05 | 曹雨晴 | Demonstrator for verifying surface area formula of ball |
| CN103617756B (en) * | 2013-12-17 | 2015-10-28 | 曹雨晴 | A kind of demonstration device verifying the surface area formula of ball |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20140131 |