CN204143698U - A kind of square demonstration teaching aid - Google Patents
A kind of square demonstration teaching aid Download PDFInfo
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- CN204143698U CN204143698U CN201420441369.1U CN201420441369U CN204143698U CN 204143698 U CN204143698 U CN 204143698U CN 201420441369 U CN201420441369 U CN 201420441369U CN 204143698 U CN204143698 U CN 204143698U
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- groove
- boss
- square
- teaching aid
- demonstration teaching
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Abstract
The utility model discloses a kind of square demonstration teaching aid, comprise six combinatorial surfaces, combinatorial surface is seamed edge with the square of boss and groove, and boss has two, is separately positioned on wherein two seamed edge centres of combinatorial surface; Groove has two, is separately positioned on the two other seamed edge centre of combinatorial surface.The utility model, by the square composite face of such six seamed edges with boss and groove, can demonstrate the structure composition of square easily and intuitively.
Description
Technical field
The utility model belongs to teaching aid technical field, is specifically related to a kind of square demonstration teaching aid.
Background technology
Existing teaching aid is all generally planar graph, can only be undertaken by mapping on blackboard during teacher explains's solid geometry knowledge, and the structure composition of three-dimensional shape cannot be demonstrated, teaching efficiency is often not good, such as utilize mapping that students ' understanding can only be allowed to be made up of to square six squares, and cannot allow student intuitively after cube expansion these six squares how to arrange, be difficult to like this allow student understand intuitively and grasp solid geometry knowledge.
Utility model content
The purpose of this utility model is to provide a kind of square demonstration teaching aid, solves the problem that existing teaching aid cannot demonstrate cube structure composition.
The technical scheme that the utility model adopts is: a kind of square demonstration teaching aid, comprises six combinatorial surfaces, and combinatorial surface is seamed edge with the square of boss and groove, and boss has two, is separately positioned on wherein two seamed edge centres of combinatorial surface; Groove has two, is separately positioned on the two other seamed edge centre of combinatorial surface.
Feature of the present utility model is also: boss mates mutually with groove.
Two sides of boss are respectively with a small boss, and two sides of groove are respectively with a little groove, and the little groove on the small boss on boss and groove matches each other.
This teaching aid also comprises pin, and the side of boss and groove all has measure-alike through hole, and the through hole of boss and groove side all matches with pin.
The beneficial effects of the utility model are: a kind of square demonstration teaching aid of the utility model, by the square composite face of six seamed edges with boss and groove, can demonstrate the structure composition of square easily and intuitively.
Accompanying drawing explanation
Fig. 1 is the structural drawing of a kind of square demonstration teaching aid of the utility model embodiment 1.
Fig. 2 is the structural drawing of a kind of square demonstration teaching aid of the utility model embodiment 2.
In figure, 1. combinatorial surface, 2. boss, 3. groove, 4. pin.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Embodiment 1: a kind of square demonstration teaching aid of the utility model, as shown in Figure 1, comprises six combinatorial surfaces 1, combinatorial surface 1 is seamed edge with the square of boss 2 and groove 3, and boss 2 has two, is separately positioned on wherein two seamed edge centres of combinatorial surface 1; Groove 3 also has two, is separately positioned on the two other seamed edge centre of combinatorial surface 1.Mutually mate between boss 2 with groove 3, and two of each boss 2 sides are respectively with a small boss, two sides of each groove 3 are respectively with a little groove, and the small boss on boss 2 and the little groove on groove 3 match each other.
Small boss on boss 2 is put into the little groove on groove 3, easily two combinatorial surfaces 1 can be connected together, dismantle also very convenient simultaneously, by this method six combinatorial surfaces 1 are coupled together according to different arrangement modes, easily can demonstrate six combinatorial surfaces 1 intuitively and can form square in which arrangement situation, and which arrangement mode cannot form square.
Embodiment 2: a kind of square demonstration teaching aid of the utility model, as shown in Figure 2, comprises six combinatorial surfaces 1, combinatorial surface 1 is seamed edge with the square of boss 2 and groove 3, and boss 2 has two, is separately positioned on wherein two seamed edge centres of combinatorial surface 1; Groove 3 also has two, is separately positioned on the two other seamed edge centre of combinatorial surface 1, mutually mates between boss 2 with groove 3.This teaching aid also comprises pin 4, and the side of boss 2 and groove 3 all has measure-alike through hole, and the through hole of boss 2 and groove 3 side all matches with pin 4.
Boss is put into groove and fixes with pin, easily two combinatorial surfaces 1 can be connected together, during dismounting, pin is taken off, by this method six combinatorial surfaces 1 are coupled together according to different arrangement modes, easily can demonstrate six combinatorial surfaces 1 intuitively and can form square in which arrangement situation, and which arrangement mode cannot form square.
Claims (4)
1. a square demonstration teaching aid, it is characterized in that, comprise six combinatorial surfaces (1), described combinatorial surface (1) is for seamed edge is with the square of boss (2) and groove (3), described boss (2) has two, is separately positioned on wherein two seamed edge centres of described combinatorial surface (1); Described groove (3) has two, is separately positioned on the two other seamed edge centre of described combinatorial surface (1).
2. a kind of square demonstration teaching aid according to claim 1, is characterized in that, described boss (2) mates mutually with groove (3).
3. a kind of square demonstration teaching aid according to claim 1 and 2, it is characterized in that, two sides of described boss (2) are respectively with a small boss, two sides of described groove (3) are respectively with a little groove, and the little groove on the small boss on described boss (2) and groove (3) matches each other.
4. a kind of square demonstration teaching aid according to claim 1 and 2, it is characterized in that, described teaching aid also comprises pin (4), the side of described boss (2) and groove (3) all has measure-alike through hole, and the through hole of boss (2) and groove (3) side all matches with described pin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441369.1U CN204143698U (en) | 2014-08-06 | 2014-08-06 | A kind of square demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441369.1U CN204143698U (en) | 2014-08-06 | 2014-08-06 | A kind of square demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143698U true CN204143698U (en) | 2015-02-04 |
Family
ID=52420370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420441369.1U Expired - Fee Related CN204143698U (en) | 2014-08-06 | 2014-08-06 | A kind of square demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110570729A (en) * | 2019-09-20 | 2019-12-13 | 郑州航空工业管理学院 | Three-dimensional space display device for mathematical education |
-
2014
- 2014-08-06 CN CN201420441369.1U patent/CN204143698U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110570729A (en) * | 2019-09-20 | 2019-12-13 | 郑州航空工业管理学院 | Three-dimensional space display device for mathematical education |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |