CN206546672U - A kind of mathematical education probabilistic model teaching aid - Google Patents
A kind of mathematical education probabilistic model teaching aid Download PDFInfo
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- CN206546672U CN206546672U CN201720052616.2U CN201720052616U CN206546672U CN 206546672 U CN206546672 U CN 206546672U CN 201720052616 U CN201720052616 U CN 201720052616U CN 206546672 U CN206546672 U CN 206546672U
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- box body
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Abstract
The utility model discloses a kind of mathematical education probabilistic model teaching aid, including box body, dividing plate, the first subregion, the second subregion, the 3rd subregion, the 4th subregion and demonstration ball, the lid be provided with upper buckle, lower buckle is correspondingly arranged on the box body with lid, one end of the lid and box body is hinged, the intracavity bottom of the box body is separated to form the first subregion, the second subregion, the 3rd subregion and the 4th subregion totally four subregions by dividing plate, and the demonstration ball is located at the bottom of box body.The mathematical education is simple with probabilistic model teaching aid structure, without other auxiliary equipments, the quantity of ball is demonstrated in the first subregion, the second subregion, the 3rd subregion and the 4th subregion by observing, observation probability distribution situation that can be clear, and demonstration mode simple to operate, toss a coin compared to tradition, substantial amounts of time in classroom can be saved, once demonstration just can obtain substantial amounts of statistical result, and can be vivid be shown, the effect that makes to give lessons is greatly promoted.
Description
Technical field
The utility model is related to teaching aid technical field, specially a kind of mathematical education probabilistic model teaching aid.
Background technology
The upper observed phenomenon of nature and society is divided into：Determine phenomenon and chance phenomenon.Probability is the one of mathematics
Individual branch, it studies the quantitative law of chance phenomenon.On the one hand, it has oneself unique concept and method, on the other hand, it with
Other branch of mathematics have close contact again, and it is the important component of modern mathematics.
The extensive use of Probability is almost throughout all science and technology fields, such as weather forecast, earthquake prediction, product
Sample investigation；Each department of industrial and agricultural production and national economy, can be used to improve the anti-interference of signal in Communication Engineering
Property, the equiprobability such as resolution ratio is because being to compare abstract concept, in College Maths probability theory course, if can be by probability teaching aid
Demonstration coordinates explanation, and student can be made to be easier to understand and grasp.
In actual presentation teaching process, teacher's general motion intuitive teaching aid coordinates speech to carry out example operation table
Drill.The probability teaching demonstration most often done in College Maths Probability Teaching at present is to throw coin experiment, i.e., by repeatedly throwing coin,
It is 1/2nd to count and obtain the positive and negative probability upwardly of coin, in order to increase the accuracy and confidence level of experiment, is often needed
Coin many times is thrown, because time in classroom is limited, the method for traditional artificial throwing coin can waste most of on classroom
Time, therefore, it is badly in need of a kind of teaching and carries out cooperation teaching with probability teaching aid.
Utility model content
The purpose of this utility model is to provide a kind of mathematical education probabilistic model teaching aid, to solve above-mentioned background technology
Middle proposition it is current in mathematical education, due to lacking special teaching aid, teacher wastes more class to the teaching demonstration of probability
The problem of hall time.
To achieve the above object, the utility model provides following technical scheme：A kind of mathematical education probabilistic model teaching aid,
Including lid, box body, upper buckle, lower buckle, dividing plate, the first subregion, the second subregion, the 3rd subregion, the 4th subregion and demonstration ball,
Being provided with upper buckle, the box body for the lid is correspondingly arranged on lower buckle, one end of the lid and box body with lid
It is hinged, the intracavity bottom of the box body is separated to form the first subregion, the second subregion, the 3rd subregion and the 4th subregion by dividing plate and is total to
Four subregions, the demonstration ball is located at the bottom of box body.
It is preferred that, first subregion, the second subregion, the base area ratio of the 3rd subregion and the 4th subregion are 1:2:3:
6。
It is preferred that, one layer of flexible rubber is equipped with the inwall of the lid and box body.
It is preferred that, the height of the dividing plate is identical with the diameter for demonstrating ball.
It is preferred that, the demonstration ball is altogether provided with two kinds of colors, and the demonstration ball quantity of two kinds of colors is identical.
Compared with prior art, the beneficial effects of the utility model are：Mathematical education probabilistic model teaching aid structure letter
It is single, without other auxiliary equipments, ball is demonstrated by observing in the first subregion, the second subregion, the 3rd subregion and the 4th subregion
Quantity, you can clear observation probability distribution situation, and simple to operate, the demonstration mode toss a coin compared to tradition,
Substantial amounts of time in classroom can be saved, once demonstration just can obtain substantial amounts of statistical result, and can be vivid carry out exhibition
Show, the effect that makes to give lessons is greatly promoted.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model tray interior structural representation；
Fig. 3 is the utility model cross section structure diagram.
In figure：1st, lid, 2, box body, 3, upper buckle, 4, lower buckle, 5, dividing plate, the 6, first subregion, the 7, second subregion, 8,
3rd subregion, the 9, the 4th subregion, 10, demonstration ball.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of mathematical education probabilistic model teaching aid, bag
Include lid 1, box body 2, upper buckle 3, lower buckle 4, dividing plate 5, the first subregion 6, the second subregion 7, the 3rd subregion 8, the and of the 4th subregion 9
Demonstrate ball 10, lid 1 is provided with upper buckle 3, be correspondingly arranged on lower buckle 4 on box body 2 with lid 1, lid 1 and box body 2
One end is hinged, and the intracavity bottom of box body 2 is separated to form the first subregion 6, the second subregion 7, the 3rd subregion 8 and the 4th by dividing plate 5
Totally four subregions of subregion 9, demonstration ball 10 is located at the bottom of box body 2.
In above-described embodiment, specifically, the first subregion 6, the second subregion 7, the bottom surface face of the 3rd subregion 8 and the 4th subregion 9
Product ratio is 1:2:3:6, it is easy to the number to demonstration ball 10 in the first subregion 6, the second subregion 7, the 3rd subregion 8 and the 4th subregion 9
Amount carries out comparing calculation.
In above-described embodiment, specifically, one layer of flexible rubber is equipped with the inwall of lid 1 and box body 2, when in use,
The noise that inwall impact of the demonstration ball 10 to lid 1 and box body 2 is caused can be reduced, it is used more hommization.
In above-described embodiment, specifically, the height of dividing plate 5 is identical with the diameter for demonstrating ball 10, make demonstration ball 10 first
Subregion 6, the second subregion 7, the 3rd subregion 8 and the free movement of the 4th subregion 9, mitigate 5 pairs of demonstration results of dividing plate and make to greatest extent
Into error.
In above-described embodiment, specifically, demonstration ball 10 is provided with two kinds of colors, and the quantity phase of demonstration ball 10 of two kinds of colors altogether
Together, it is easy to carry out comparing calculation to the quantity of demonstration ball 10 in the first subregion 6, the second subregion 7, the 3rd subregion 8 and the 4th subregion 9
While, go back observable the first subregion 6, the second subregion 7, the demonstration ball 10 of different colours in the 3rd subregion 8 and the 4th subregion 9
Distributed number, is further demonstrated probability distribution state.
Operation principle：, need to be to whole mathematical education probabilistic model when using the mathematical education with probabilistic model teaching aid
Teaching aid has the understanding in a structure, when in use, can more easily be used, and the mathematical education is taught with probabilistic model
Tool in the bottom of box body 2 by setting dividing plate 5, and it is 1 to be separated to form base area ratio:2:3:6 four regions, and set
There are several and be divided into the demonstration ball 10 of two kinds of colors, during operation, lid 1 is detained with box body 2 by upper buckle 3 and lower buckle 4
Close, both hands take box body 2 in one's arms and constantly rock, demonstration ball 10 is distributed to the first subregion 6, the second subregion 7, the 3rd subregion 8 and the
In four subregions 9, then, box body 2 is placed on desktop, open the lid 1, the first subregion 6 of observation, the second subregion 7, the 3rd subregion
8 and the 4th demonstration ball 10 in subregion 9 quantity, it is possible to find, the first subregion 6, the second subregion 7, the 3rd subregion 8 and the 4th subregion 9
The quantitative proportion of interior demonstration ball 10 is 1:2:3:6, the quantity ratio of the demonstration ball 10 of different colours is all 1:2:3:6, you can to general
Rate distribution carries out example explanation.
In summary, general principle of the present utility model, principal character and advantage has been shown and described above.The industry
Technical staff it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification only
It is to illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model also has
Various changes and modifications, these changes and improvements are both fallen within the range of claimed the utility model.The utility model requirement
Protection domain is defined by appended claims and its effect thing.
Claims (5)
1. a kind of mathematical education probabilistic model teaching aid, including lid (1), box body (2), upper buckle (3), lower buckle (4), dividing plate
(5), the first subregion (6), the second subregion (7), the 3rd subregion (8), the 4th subregion (9) and demonstration ball (10), it is characterised in that：Institute
State being provided with upper buckle (3), the box body (2) for lid (1) and be correspondingly arranged on lower buckle (4), the lid with lid (1)
(1) it is hinged with one end of box body (2), the intracavity bottom of the box body (2) is separated to form the first subregion (6), by dividing plate (5)
Two subregions (7), the 3rd subregion (8) and the 4th subregion (9) totally four subregions, the demonstration ball (10) are located at the bottom of box body (2).
2. a kind of mathematical education probabilistic model teaching aid according to claim 1, it is characterised in that：First subregion
(6), the base area ratio of the second subregion (7), the 3rd subregion (8) and the 4th subregion (9) is 1:2:3:6.
3. a kind of mathematical education probabilistic model teaching aid according to claim 1, it is characterised in that：The lid (1) and
One layer of flexible rubber is equipped with the inwall of box body (2).
4. a kind of mathematical education probabilistic model teaching aid according to claim 1, it is characterised in that：The dividing plate (5)
Height is identical with the diameter of demonstration ball (10).
5. a kind of mathematical education probabilistic model teaching aid according to claim 1, it is characterised in that：The demonstration ball (10)
Altogether provided with two kinds of colors, and demonstration ball (10) quantity of two kinds of colors is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720052616.2U CN206546672U (en) | 2017-01-17 | 2017-01-17 | A kind of mathematical education probabilistic model teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720052616.2U CN206546672U (en) | 2017-01-17 | 2017-01-17 | A kind of mathematical education probabilistic model teaching aid |
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| Publication Number | Publication Date |
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| CN206546672U true CN206546672U (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720052616.2U Expired - Fee Related CN206546672U (en) | 2017-01-17 | 2017-01-17 | A kind of mathematical education probabilistic model teaching aid |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109272827A (en) * | 2018-11-09 | 2019-01-25 | 山东劳动职业技术学院（山东劳动技师学院） | Probability learning secondary presentation device |
-
2017
- 2017-01-17 CN CN201720052616.2U patent/CN206546672U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109272827A (en) * | 2018-11-09 | 2019-01-25 | 山东劳动职业技术学院（山东劳动技师学院） | Probability learning secondary presentation device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 Termination date: 20180117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |