CN203535860U - Probability demonstrating teaching aid used for teaching college mathematics - Google Patents
Probability demonstrating teaching aid used for teaching college mathematics Download PDFInfo
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- CN203535860U CN203535860U CN201320696676.XU CN201320696676U CN203535860U CN 203535860 U CN203535860 U CN 203535860U CN 201320696676 U CN201320696676 U CN 201320696676U CN 203535860 U CN203535860 U CN 203535860U
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- shaped object
- dish
- probability
- teaching
- disc
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Abstract
A probability demonstrating teaching aid used for teaching college mathematics belongs to the field of teaching aids and settles a problem that no probability demonstrating teaching aid which is suitable for teaching college mathematics exists. The probability demonstrating teaching aid comprises a disc-shaped object A and a disc-shaped object B. The disc-shaped object A is made of transparent material. The inner central position of the disc-shaped object A is provided with a square-shaped space. The disc-shaped object B is arranged in the square-shaped space. The edge of the disc-shaped object A and the edge of the disc-shaped object B are respectively provided with a rubber layer. One surface of the disc-shaped object A and one surface of the disc-shaped object B are provided with color marks. The probability demonstrating teaching aid is used for demonstrating probability.
Description
Technical field:
The utility model belongs to educational aid field, is specifically related to the probability demonstration teaching aid that a kind of College Mathematics Teaching is used.
Background technology:
Probability, claim again probability, it is the possibility size that certain event occurs, it is comparison abstract concept, if can coordinate the explanation of demonstration limit, demonstration teaching aid limit will accelerate the understanding to probability when explaining probability in College Mathematics Teaching, not be applicable at present the probability demonstration teaching aid that College Mathematics Teaching is used.
Utility model content:
The purpose of this utility model is the problem that is applicable at present the probability demonstration teaching aid of College Mathematics Teaching use in order to solve, the probability demonstration teaching aid that provides a kind of College Mathematics Teaching to use, and its technical scheme is as follows:
The probability demonstration teaching aid that a kind of College Mathematics Teaching is used, it comprises dish-shaped object A and dish-shaped object B, described dish-shaped object A adopts transparent material, the bosom position of dish object A is provided with the space of square shape, dish object B is arranged in the space of square shape, in the edge of dish-shaped object A and the edge of dish-shaped object B, be provided with rubber layer, on a surface of dish-shaped object A and on a surface of dish-shaped object B, be provided with color mark.
The beneficial effects of the utility model are: can by observing dish-shaped object B, to do result be the demonstration of 1/2nd probability, can compare complicated probability and demonstrate by observe dish-shaped object A and dish-shaped object B simultaneously again, simple to operation, easily make student understand the science of probability calculation.
Accompanying drawing explanation:
Fig. 1 is external structure schematic diagram of the present utility model.
Fig. 2 is inner structure schematic diagram of the present utility model.
Embodiment:
See figures.1.and.2, the probability demonstration teaching aid that a kind of College Mathematics Teaching is used, it comprises dish-shaped object A1 and dish-shaped object B2, described dish-shaped object A1 adopts transparent material, the bosom position of dish object A1 is provided with the space 1-1 of square shape, dish object B2 is arranged in the space 1-1 of square shape, in the edge of dish-shaped object A1 and the edge of dish-shaped object B2, be provided with rubber layer 3, on a surface of dish-shaped object A1 and on a surface of dish-shaped object B2, be provided with color mark 4.
Preferably, in the inside of described dish-shaped A1, be provided with annular space 1-2, annular space 1-2 is positioned at the outside of the space 1-1 of square shape, can weight reduction.
Preferably, described color mark 4 is red.
The using method of utility model and principle: the utility model is erect on the ground and rolled, and which faces up to wait the dish-shaped object A1 of its static rear observation and dish-shaped object B2, many experiments statistics, just can obtain probability results; Rubber layer 3 can make the utility model not fragile.
Claims (3)
1. the probability demonstration teaching aid that a College Mathematics Teaching is used, it is characterized in that it comprises dish-shaped object A (1) and dish-shaped object B (2), described dish-shaped object A (1) adopts transparent material, the bosom position of dish object A (1) is provided with the space (1-1) of square shape, dish object B (2) is arranged in the space (1-1) of square shape, in the edge of dish-shaped object A (1) and the edge of dish-shaped object B (2), be provided with rubber layer (3), on a surface of dish-shaped object A (1) and on a surface of dish-shaped object B (2), be provided with color mark (4).
2. the probability demonstration teaching aid that a kind of College Mathematics Teaching is used as claimed in claim 1, it is characterized in that being provided with annular space (1-2) in the inside of described dish-shaped A (1), annular space (1-2) is positioned at the outside in the space (1-1) of square shape.
3. the probability demonstration teaching aid that a kind of College Mathematics Teaching is used as claimed in claim 1, is characterized in that described color mark (4) is for red.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320696676.XU CN203535860U (en) | 2013-11-06 | 2013-11-06 | Probability demonstrating teaching aid used for teaching college mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320696676.XU CN203535860U (en) | 2013-11-06 | 2013-11-06 | Probability demonstrating teaching aid used for teaching college mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203535860U true CN203535860U (en) | 2014-04-09 |
Family
ID=50422042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320696676.XU Expired - Fee Related CN203535860U (en) | 2013-11-06 | 2013-11-06 | Probability demonstrating teaching aid used for teaching college mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203535860U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761581A (en) * | 2016-05-14 | 2016-07-13 | 哈尔滨共阳科技咨询有限公司 | Probability teaching demonstration model |
-
2013
- 2013-11-06 CN CN201320696676.XU patent/CN203535860U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761581A (en) * | 2016-05-14 | 2016-07-13 | 哈尔滨共阳科技咨询有限公司 | Probability teaching demonstration model |
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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: 20140409 Termination date: 20141106 |
|
| EXPY | Termination of patent right or utility model |