Mathematical probability demonstration device

A demonstration device and probability technology, applied in the field of teaching tools, can solve the problems of time-consuming and laborious, difficult to ensure the same direction of force, error-prone statistical results, etc., so as to reduce labor intensity, reduce teaching difficulty, and improve persuasiveness.

Active Publication Date: 2018-11-30
李春浓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is time-consuming and labor-intensive to toss a coin manually and count whether the coin lands head-up or tail-up, and the statistical results are prone to errors.
At the same time, it is difficult to ensure that factors such as the force and direction of each toss are the same by manually tossing coins, resulting in a lack of convincing experimental results

Method used

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  • Mathematical probability demonstration device
  • Mathematical probability demonstration device
  • Mathematical probability demonstration device

Examples

Experimental program
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Embodiment 1

[0050] Please refer to Figure 1-Figure 7 . In this embodiment, the mathematical probability demonstration device 010 includes a coin storage cylinder 110, a support plate 120, a first driving device 130, a receiving plate 140, a projecting mechanism 150, a coin receiving cylinder 160, a coin guide channel 170, a coin delivery block 180, The second driving device 190 and the support plate 200 .

[0051] The coin storage cylinder 110 is set upright for storing coins 020 . Coins 020 are stacked in the coin hopper 110 . A coin outlet 111 is provided on the upper end of the coin storage tube 110 , and the coin output port 111 is used for allowing coins in the coin storage tube 110 to slide out of the coin storage tube 110 . The support plate 120 is disposed in the coin storage tube 110 for supporting the coins in the coin storage tube 110 . The support plate 120 can move up and down along the axis of the coin storage tube 110 . In this embodiment, the support plate 120 is inc...

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Abstract

The invention relates to the technical field of teaching appliances, and provides a mathematical probability demonstration device. The mathematical probability demonstration device can realize automatic coin toss and ensure that the angle, direction and other factors of each coin toss are the same, greatly reduces the labor intensity of human, and meanwhile, further improves the persuasiveness ofthe experimental results. In addition, according to the mathematical probability demonstration device, a coin can be fed into first coin accommodating holes or second coin accommodating holes according to the orientation of the coin through a coin conveying block and a second driving device, and thus the automatic statistics of the coin orientation is realized. After an experiment is completed, students only need to observe the degree to which a first coin accommodating hole group and a second coin accommodating hole group are filled with coins, and then the students can intuitively judge theprobability of the situation that the front face of the coin faces upwards and the probability of the situation that the reverse face of the coin faces upwards. The mathematical probability demonstration device can help the students accurately understand the knowledge point of probability and greatly reduce the teaching difficulty.

Description

technical field [0001] The invention relates to the field of teaching aids, in particular to a mathematical probability demonstration device. Background technique [0002] In mathematics teaching, how to let students accurately understand the knowledge point of probability has always been a difficult point in teaching. A classic probability knowledge point is that, as long as there are enough times to toss a coin, the probability of the coin turning up heads or tails should converge. Many students find it difficult to understand this knowledge point when they are studying. For this, experimental statistics are required. However, it is time-consuming and labor-intensive to toss a coin manually and count whether the coin lands head-up or tail-up, and the statistical results are prone to errors. At the same time, it is difficult to ensure that factors such as the force and direction of each toss are the same by manually tossing coins, resulting in a lack of convincing ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 李春浓
Owner 李春浓
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