A mathematical probability demonstration device

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 experi...

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

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