CN204791672U - Teaching aid is demonstrated to probability for teaching - Google Patents
Teaching aid is demonstrated to probability for teaching Download PDFInfo
- Publication number
- CN204791672U CN204791672U CN201520322781.6U CN201520322781U CN204791672U CN 204791672 U CN204791672 U CN 204791672U CN 201520322781 U CN201520322781 U CN 201520322781U CN 204791672 U CN204791672 U CN 204791672U
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- CN
- China
- Prior art keywords
- bucket
- spring
- teaching
- handle
- probability
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Abstract
The utility model provides a teaching aid is demonstrated to probability for teaching, includes the cylindrical bucket that stands of one end open -ended, vertically be equipped with the spout on the inner wall of upright bucket both sides, it has the slider to inlay in the spout, is connected with circular roof between two sliders, still includes the helical spring, the top of spring is connected with the bottom of roof, the lower extreme and the bottom of standing in the bucket of spring are connected, be equipped with the opening on the bucket wall of upright bucket, be equipped with the handle in the opening, the one end and the roof connection of handle. The utility model discloses simple structure pops out through the coin of spring on with the roof, sees the demonstration result according to the positive and negative of coin is audio -visual, and is efficient.
Description
Technical field
The utility model relates to a kind of teaching probability demonstration teaching aid.
Background technology
If the understanding that can coordinate simple and effective demonstration teaching aid will accelerate probability when explanation probability, at present less than especially effective probability demonstration teaching aid.
Summary of the invention
The purpose of this utility model is for above-mentioned deficiency, provides a kind of teaching probability demonstration teaching aid.
Described object is achieved by the following scheme: a kind of teaching probability demonstration teaching aid, comprise the cylindrical vertical bucket of one end open, the inwall of described vertical bucket both sides is longitudinally provided with chute, slide block is inlaid with in described chute, circular top plate is connected with between two slide blocks, also comprise helical spring, the top of described spring is connected with the bottom of top board, the lower end of described spring is connected with the bottom in vertical bucket, the bucket wall of described vertical bucket is provided with gap, be provided with handle in described gap, one end of described handle is connected with top board.
The utility model has the following advantages: the utility model structure is simple, and ejected by the coin on top board by spring, the pros and cons according to coin sees demonstration result intuitively, and efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the syndeton schematic diagram of handle and gap.
Wherein, 5-founds bucket, 6-chute, 7-slide block, 8-top board, 9-spring, 10-gap, 11-handle.
Embodiment
The utility model is elaborated preferred embodiment below in conjunction with accompanying drawing.
Probability demonstration teaching aid is used in a kind of teaching, comprise the cylindrical vertical bucket 5 of one end open, the inwall of described vertical bucket 5 both sides is longitudinally provided with chute 6, slide block 7 is inlaid with in described chute 6, circular top plate 8 is connected with between two slide blocks 7, also comprise helical spring 9, the top of described spring 9 is connected with the bottom of top board 8, the lower end of described spring 9 is connected with the bottom in vertical bucket 5, the bucket wall of described vertical bucket 5 is provided with gap 10, be provided with handle 11 in described gap 10, one end of described handle 11 is connected with top board 8.
Vertical bucket 5 is built with multiple coin, fall on top board 8 by folded for multiple coin, handle 11 can move up and down in gap 10, pull handle 11, top board 8 moves to the lower end of vertical bucket 5, unclamps handle 11, by the elastic force of spring 9, coin on top board 8 is ejected, falls on desktop, see the probability results of 50 percent according to the pros and cons of coin very intuitively.By slide block 7, top board 8 is fixed, when preventing spring 9 from being upspring by top board 8, the inclination of top board 8.Top board 8 vertical take off and landing in vertical bucket 5 is coordinated by chute 6 and slide block 7.
Present embodiment does not just limit its protection domain to the exemplary illustrated of this patent; those skilled in the art can also carry out local to it and change; as long as no the Spirit Essence exceeding this patent, be all considered as the equivalent replacement to this patent, all at the protection domain of this patent.
Claims (1)
1. probability demonstration teaching aid is used in a teaching, comprise the cylindrical vertical bucket (5) of one end open, it is characterized in that: the inwall of described vertical bucket (5) both sides is longitudinally provided with chute (6), slide block (7) is inlaid with in described chute (6), circular top plate (8) is connected with between two slide blocks (7), also comprise helical spring (9), the top of described spring (9) is connected with the bottom of top board (8), the lower end of described spring (9) is connected with the bottom in vertical bucket (5), the bucket wall of described vertical bucket (5) is provided with gap (10), handle (11) is provided with in described gap (10), one end of described handle (11) is connected with top board (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520322781.6U CN204791672U (en) | 2015-05-19 | 2015-05-19 | Teaching aid is demonstrated to probability for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520322781.6U CN204791672U (en) | 2015-05-19 | 2015-05-19 | Teaching aid is demonstrated to probability for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204791672U true CN204791672U (en) | 2015-11-18 |
Family
ID=54531675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520322781.6U Expired - Fee Related CN204791672U (en) | 2015-05-19 | 2015-05-19 | Teaching aid is demonstrated to probability for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204791672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492683A (en) * | 2018-03-12 | 2018-09-04 | 浙江工贸职业技术学院 | A kind of higher mathematics demonstration device for probability |
| CN109215452A (en) * | 2018-11-06 | 2019-01-15 | 嘉兴学院 | A kind of simulating demonstration teaching aid for mathematics |
-
2015
- 2015-05-19 CN CN201520322781.6U patent/CN204791672U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492683A (en) * | 2018-03-12 | 2018-09-04 | 浙江工贸职业技术学院 | A kind of higher mathematics demonstration device for probability |
| CN108492683B (en) * | 2018-03-12 | 2019-12-03 | 浙江工贸职业技术学院 | A kind of higher mathematics demonstration device for probability |
| CN109215452A (en) * | 2018-11-06 | 2019-01-15 | 嘉兴学院 | A kind of simulating demonstration teaching aid for mathematics |
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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: 20151118 Termination date: 20160519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |