CN204066506U - The portable demonstration teaching aid of a kind of mathematics - Google Patents
The portable demonstration teaching aid of a kind of mathematics Download PDFInfo
- Publication number
- CN204066506U CN204066506U CN201420488651.5U CN201420488651U CN204066506U CN 204066506 U CN204066506 U CN 204066506U CN 201420488651 U CN201420488651 U CN 201420488651U CN 204066506 U CN204066506 U CN 204066506U
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- CN
- China
- Prior art keywords
- chamber
- bearing
- rotating disc
- teaching aid
- demonstration teaching
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses the portable demonstration teaching aid of a kind of mathematics, comprise base and rotating disc, described base is provided with base bearing, described rotating disc comprises disk body and disk cover, disk body is provided with bearing chamber, rotating disc bearing is provided with in bearing chamber, multiple ball is all provided with in first chamber of disk body and the second chamber, described base bearing is connected by rotating shaft with rotating disc bearing, the utility model is disc-shaped structure, randomly draw by rotating and carry out adding up the demonstration carrying out theory of probability, sound construction, parts are few, are easy to carry.
Description
Technical field
The utility model relates to maths demonstration teaching aid, particularly relates to a kind of portable probability demonstration teaching aid.
Background technology
Theory of probability is the branch of mathematics of research chance phenomenon quantitative law, when general teacher carries out mathematical probabilities generation demonstration, one piece of coin is often used to carry out throwing, carry out simple statistics after record pros and cons frequency, the probabilistic knowledge that this mode is high to the level of abstraction and difficulty is high such as Bayes' theorem etc. does not have the help on understanding.
The instructions of Chinese patent CN203276657U discloses a kind of probability demonstration teaching aid, comprise base, scaleplate, base is provided with drawer, be provided with multiple colored annular ring in drawer, base is provided with many steel pipes, and multiple statistics label is successively set on the front end face of base, although the probability demonstration teaching aid of this structure can provide demonstration preferably and help the effect of understanding, but still have more separate components, not portable, and easily lose parts.
Utility model content
The utility model object is to overcome above-mentioned the deficiencies in the prior art, provides a kind of and is easy to carry, parts are few, student can be helped to understand the portable demonstration teaching aid of mathematics of theory of probability.
The technical solution of the utility model is: the portable demonstration teaching aid of a kind of mathematics, comprise base and rotating disc, described base is provided with base bearing, described rotating disc comprises disk body and disk cover, disk body is provided with bearing chamber, rotating disc bearing is provided with in bearing chamber, disk body is evenly divided into area by baffle plate, the first chamber that shape is all identical and the second chamber, multiple ball is all provided with in first chamber and the second chamber, described disk cover is gone into battle and is shown four holes of driving, described hole of driving is provided with elasticity veiling, described veiling is provided with elastic opening, described base bearing is connected by rotating shaft with rotating disc bearing.
Described base is right cylinder.
Described rotating disc is right cylinder.
In the form of annular discs being more convenient for of whole teaching aid is carried.
Be provided with seven red balls and three white balls in the first described chamber, in the second described chamber, be provided with a red ball and nine white balls.
Described ball is all provided with label.
Statistics and the demonstration of carrying out various ways probability are convenient in such design.
The beneficial effects of the utility model are: the utility model is disc-shaped structure, randomly draw by rotating and carry out adding up the demonstration carrying out theory of probability, sound construction, parts are few, be easy to carry, ball is closed in rotating disc by veiling, unless hand stretches into crawl, can not drop under all the other states.
Accompanying drawing explanation
Fig. 1 is stereographic map of the present utility model;
Fig. 2 is explosive view of the present utility model.
In figure: base 1, base bearing 2, disk body 3, disk cover 4, bearing chamber 5, rotating disc bearing 6, baffle plate 7, first chamber 8, second chamber 9, ball 10, hole 11 of driving, veiling 12, elastic opening 13, rotating shaft 14.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Shown in composition graphs 1 and Fig. 2, the portable demonstration teaching aid of a kind of mathematics, comprise base 1 and rotating disc, described base 1 is provided with base bearing 2, described rotating disc comprises disk body 3 and disk cover 4, disk body 3 is provided with bearing chamber 5, rotating disc bearing 6 is provided with in bearing chamber 5, disk body 3 is evenly divided into area by baffle plate 7, the first chamber 8 and the second chamber 9 that shape is all identical, multiple ball 10 is all provided with in first chamber 8 and the second chamber 9, described disk cover 4 is gone into battle and is shown four holes 11 of driving, described hole 11 of driving is provided with elasticity veiling 12, described veiling 12 is provided with elastic opening 13, described base bearing 2 is connected by rotating shaft 14 with rotating disc bearing 6, described base 1 is right cylinder, described rotating disc is right cylinder, seven red balls and three white balls are provided with in the first described chamber 8, a red ball and nine white balls are provided with in the second described chamber 9, described ball 10 is all provided with label.
During use, rotate rotating disc, the ball that then ball carries out adding up different colours is extracted at random out in mouth of driving, probability can be demonstrated, because the first chamber is identical with the second chamber area shape, and blocking by veiling hole of driving, can randomness be ensured through rotating, improve student to the interest of theory of probability simultaneously, and help it to understand.
Claims (5)
1. the portable demonstration teaching aid of mathematics, it is characterized in that: comprise base and rotating disc, described base is provided with base bearing, described rotating disc comprises disk body and disk cover, disk body is provided with bearing chamber, rotating disc bearing is provided with in bearing chamber, disk body is evenly divided into area by baffle plate, the first chamber that shape is all identical and the second chamber, multiple ball is all provided with in first chamber and the second chamber, described disk cover is gone into battle and is shown four holes of driving, described hole of driving is provided with elasticity veiling, described veiling is provided with elastic opening, described base bearing is connected by rotating shaft with rotating disc bearing.
2. the portable demonstration teaching aid of a kind of mathematics according to claim 1, is characterized in that: described base is right cylinder.
3. the portable demonstration teaching aid of a kind of mathematics according to claim 1, is characterized in that: described rotating disc is right cylinder.
4. the portable demonstration teaching aid of a kind of mathematics according to claim 1, is characterized in that: be provided with seven red balls and three white balls in the first described chamber, is provided with a red ball and nine white balls in the second described chamber.
5. the portable demonstration teaching aid of a kind of mathematics according to claim 1 or 4, is characterized in that: described ball is all provided with label.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488651.5U CN204066506U (en) | 2014-08-28 | 2014-08-28 | The portable demonstration teaching aid of a kind of mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488651.5U CN204066506U (en) | 2014-08-28 | 2014-08-28 | The portable demonstration teaching aid of a kind of mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066506U true CN204066506U (en) | 2014-12-31 |
Family
ID=52207966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420488651.5U Expired - Fee Related CN204066506U (en) | 2014-08-28 | 2014-08-28 | The portable demonstration teaching aid of a kind of mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066506U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715655A (en) * | 2015-04-01 | 2015-06-17 | 白依川 | Advanced mathematics probability presentation device |
| CN105632294A (en) * | 2016-01-13 | 2016-06-01 | 河南机电高等专科学校 | Mathematics probability teaching demonstration device |
| 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 |
| CN107527536A (en) * | 2017-09-20 | 2017-12-29 | 潍坊科技学院 | A kind of Mathematical Probability Teaching simulator apparatus |
| CN107798965A (en) * | 2017-11-22 | 2018-03-13 | 黄跃 | Dice agitating device is used in a kind of mathematical probabilities teaching |
| CN111477073A (en) * | 2020-05-25 | 2020-07-31 | 西安石油大学 | Mathematical probability demonstration device |
| CN112908114A (en) * | 2021-01-28 | 2021-06-04 | 中国人民解放军国防科技大学 | Queuing theory teaching demonstration and statistics device |
-
2014
- 2014-08-28 CN CN201420488651.5U patent/CN204066506U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715655A (en) * | 2015-04-01 | 2015-06-17 | 白依川 | Advanced mathematics probability presentation device |
| CN105632294A (en) * | 2016-01-13 | 2016-06-01 | 河南机电高等专科学校 | Mathematics probability teaching demonstration device |
| CN105632294B (en) * | 2016-01-13 | 2018-09-04 | 河南工学院 | A kind of mathematical probabilities teaching demonstration device |
| 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 |
| CN107527536A (en) * | 2017-09-20 | 2017-12-29 | 潍坊科技学院 | A kind of Mathematical Probability Teaching simulator apparatus |
| CN107527536B (en) * | 2017-09-20 | 2019-08-30 | 潍坊科技学院 | A kind of mathematical probabilities teaching emulator device |
| CN107798965A (en) * | 2017-11-22 | 2018-03-13 | 黄跃 | Dice agitating device is used in a kind of mathematical probabilities teaching |
| CN111477073A (en) * | 2020-05-25 | 2020-07-31 | 西安石油大学 | Mathematical probability demonstration device |
| CN112908114A (en) * | 2021-01-28 | 2021-06-04 | 中国人民解放军国防科技大学 | Queuing theory teaching demonstration and statistics device |
| CN112908114B (en) * | 2021-01-28 | 2023-03-14 | 中国人民解放军国防科技大学 | Queuing theory teaching demonstration and statistics device |
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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: 20141231 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |