Advanced mathematics probability demonstration device

Abstract

The invention discloses an advanced mathematics probability demonstration device, which relates to the technical field of teaching equipment, and comprises a demonstration box; wherein a plurality of L-shaped discharging cylinders are uniformly and fixedly connected to the circumferential surface of the demonstration box, the lower end of each L-shaped discharging cylinder is communicated with the interior of the demonstration box, and sliding grooves are formed in the inner walls of the left side and the right side of each L-shaped discharging cylinder. Based on the cooperation of the L-shaped discharging cylinder, the sliding groove, the first sealing piece, the demonstration ball, the sliding block, the extrusion plate and the connecting rod, the connecting rod can be pushed downwards to drive the extrusion plate fixedly connected to move downwards, and the extrusion plate drives the sliding blocks fixedly connected to the left side and the right side to slide downwards in the sliding groove; and then the demonstration balls in the L-shaped discharge cylinder is pressed to move downwards, so that the lowest demonstration ball pushes the lower butt joint parts of the plurality of sealing sheets I to open, thereby realizing the effect of sequentially placing the demonstration balls with different colors into the demonstration box, increasing the demonstration types of probabilities, and improving the practicability.

Description

technical field [0001] The invention relates to the technical field of teaching equipment, in particular to an advanced mathematics probability demonstration device. Background technique [0002] Advanced mathematics refers to the more complicated part of mathematics objects and methods compared with elementary mathematics. Broadly speaking, mathematics other than elementary mathematics is advanced mathematics, and there are also algebra, geometry, and simple set theory that are more in-depth in middle school. Preliminary and logic are initially called secondary mathematics, which is regarded as the transition between elementary mathematics in primary and secondary schools and advanced mathematics in colleges. It is generally believed that advanced mathematics is composed of calculus, more in-depth algebra, geometry and their Probability is a relatively obscure subject in advanced mathematics. Probability, also known as probability, chance rate, probability or possibility, i...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an advanced mathematics probability demonstration device, which solves the problem that a coin has only two sides, and the probability of verification is only 1 / 2, which has limitations and is not conducive to teaching. or sieve, both the coin and the sieve will rotate, and the process of waiting for the rotation to stop is relatively slow, which affects the teacher's teaching efficiency and is very inconvenient

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