Probability demonstration device for mathematics teaching

Abstract

The invention discloses a probability demonstration device for mathematics teaching. The device comprises a supporting baseplate, a transparent connecting barrel is connected to the upper surface of the supporting baseplate through two supporting plates, the upper end of the transparent connecting barrel is provided with an upper end connecting cover, the upper surface of the upper end connectingcover is provided with a motor, and an output shaft of the motor penetrates through and extends into the transparent connecting barrel. Probability balls in the transparent connecting barrel can be stirred by stirring columns; an air pump can blow air into probability ball connecting pipes and blow the probability balls at the bottom of the transparent connecting barrel to the upper portion of thetransparent connecting barrel, so that the probability is more accurate; the interior of the transparent connecting barrel can be divided into four parts through partition plates, and four probabilities can be simultaneously demonstrated by the four probability ball connecting pipes. The probability demonstration device for mathematics teaching is simple in structure and easy to operate and can detect multiple probabilistic events at the same time and provide convenience for people and teachers.

Description

technical field [0001] The invention relates to the technical field of mathematics teaching, in particular to a probability demonstration device for mathematics teaching. Background technique [0002] Mathematics is a discipline that studies concepts such as quantity, structure, change, space, and information. From a certain perspective, it is a kind of formal science. Mathematicians and philosophers have a series of views on the exact scope and definition of mathematics. When teachers teach probability to students, they will use number balls. The teacher puts multiple number balls into the container and shakes them, then randomly takes out one, and records the number. The teacher repeats the previous step to record multiple numbers, and then according to The probability of digital appearance is used to calculate the probability, so as to teach students. In the prior art, when the digital ball is manually shaken, the digital ball is easy to fall, the manual mixing of the dig...

AI Technical Summary

Problems solved by technology

[0002] Mathematics is a discipline that studies concepts such as quantity, structure, change, space, and information. From a certain perspective, it is a kind of formal science. Mathematicians and philosophers have a series of views on the exact scope and definition of mathematics. When teachers teach probability to students, they will use number balls. The teacher puts multiple number balls into the container and shakes them, then randomly takes out one, and records the number. The teacher repeats the previous step to record multiple numbers, and then according to The probability of digital appearance is used to calculate the probability, so as to teach students. In the prior art, when the digital ball is manually shaken, the digital ball is easy to fall, the manual mixing of the digital ball is not uniform enough, and the artificially taken out digital ball is not convincing enough. This can only operate on one kind of probability, so it is inconvenient to use, and the probability ball is not easy to take out

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