A Multifunctional Combined Teaching Aid for Probability Learning

Abstract

The invention provides a multifunctional combined teaching aid for probability learning, which belongs to the technical field of teaching aids. It solves the problems of inaccurate positioning, single function and unchangeable size of existing teaching aids. This multifunctional combined teaching aid for probability learning includes a base with slot 1 on the base, and a teaching module. The teaching module includes rollers and display blocks. The outer wall of the roller is provided with slot 2, and the display block is absorbed to slot 2. On the inner wall of slot 1, magnet 1 is provided, and the outer wall of the roller is provided with magnet 2 corresponding to magnet 1. There is also a magnetic pin shaft in the roller, and the top surface of the base, the bottom surface of the base, the left side of the base and the base Both right sides are magnetic. When it is necessary to demonstrate a single probability, the corresponding display block can be obtained by rotating the roller. Since the first magnet and the second magnet are attracted to each other, the rotation positioning is very fast; when the probability distribution is demonstrated, since multiple teaching modules are attracted to each other through the pin shaft, the Multiple teaching modules are used to demonstrate probability distributions as a whole.

Description

technical field [0001] The invention belongs to the technical field of teaching aids, and relates to a multifunctional combined teaching aid for probability learning. Background technique [0002] Now when teachers are teaching probability, there are no teaching aids available, and they can only use words and language to explain on the blackboard. Probability is an abstract concept, and it is difficult for students to quickly understand it by explaining it in this way. [0003] For example, Chinese patent application [Application No.: 201320257234.5; Publication No. 203217830U] discloses a probability mold teaching aid for university mathematics teaching, which includes a magnetic chassis, a partition, a teaching module, and a suction cup. The board is divided into several spaces of the same shape and size, and teaching modules are arranged in the spaces, and suction cups are provided at the four corners of the back of the magnet-type chassis, which is characterized in that ...

AI Technical Summary

Problems solved by technology

[0005] However, the functions of the above two existing teaching aids are very single. When the lecturer needs to use the flipping teaching module to display a single probability and stretch the slider to display the probability distribution, he needs to take two teaching aids at the same time, which is very inconvenient and displays a single probability. Because the teaching aids use the rotating shaft to rotate the teaching module, the positioning of the teaching module is not accurate, the classroom time is precious, and the teacher does not need to waste time on it; in addition, the existing teaching aids for learning probability are usually a whole, which is very inconvenient to carry and store. It is not convenient to choose the size according to the actual situation

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