Mathematical probability demonstration device

Abstract

The invention provides a mathematical probability demonstration device, which comprises a transparent box body and an iron coin capable of being attracted by a magnet, and is characterized in that the box body is internally provided with a baffle plate which guides the iron coin to fall, an iron coin accommodating cavity provided for the iron coin to drop is arranged between the baffle plate and the box body, the bottom of the iron coin accommodating cavity is provided with a horizontal conveying mechanism, one side of the iron coin accommodating cavity is provided with a coin falling crack adapting to the thickness of the iron coin, the outlet side of the coin falling crack is provided with a coin storage box, the coin storage box is provided with a coin storage crack at the position corresponding to the outlet of the coil falling crack, one side of the coin storage crack is provided with an electromagnet fixed on the coin storage box, and the coin storage box is fixed on a lifting mechanism. The mathematical probability demonstration device is simple in structure, demonstration is performed through cyclic throw statistics for one iron coin, the whole process does not need manual assistance, the automation degree is high, a teacher can be enabled to perform the demonstration while giving instruction without mutual influence, and the teaching efficiency can be greatly improved.

Description

technical field [0001] The invention mainly relates to a demonstration education used in mathematics teaching, in particular to a mathematics probability demonstration device. Background technique [0002] In the process of explaining mathematics probability courses, in order to facilitate students' understanding, teachers generally prepare some demonstration teaching aids. One of the most commonly used demonstration teaching aids is the coin toss experiment, that is, toss a coin at random many times, and count the number of times the coin appears on both sides. Due to the more times of coin tossing, the more persuasive the probability event is, the traditional demonstration teaching aids have the following disadvantages: the degree of automation is low. For sorting and statistics, it cannot be completely separated from manpower when using it. When there are many coin tosses, it will affect the teaching efficiency; it is inconvenient to control and organize when using more ...

AI Technical Summary

Problems solved by technology

Due to the more times of coin tossing, the more persuasive the probability event is, the traditional demonstration teaching aids have the following disadvantages: the degree of automation is low. Sorting and statistics can not be completely separated from manpower when using it. When there are many coin tosses, it will affect the teaching efficiency; it is inconvenient to control and organize when using more coins

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