Portable mathematical probability demonstrator

Abstract

The present invention discloses a portable mathematical probability demonstrator. The portable mathematical probability demonstrator comprises a box body; a small ball container groove I and a small ball container groove II are installed in the box body; a small ball inlet is installed on the top of the box body; a ball outlet is arranged below the small ball inlet; a baffle is installed below the ball outlet; the back surface of the box body is provided with a pull rod; the front surface of the box body is provided with nixie tubes; the bottom of the box body is provided with a base; a drawer is installed in the base; the outer surface of the drawer is provided with a handle; and the four corners of the base are connected with universal casters. Since the portable mathematical probability demonstrator is provided with the nixie tubes, so that the demonstrator can automatically record the number of small balls, and therefore, the correctness of the counting of the small balls can be ensured, and mistakes in manual counting can be avoided; and the portable mathematical probability demonstrator is provided with the pull rod, and the pull rod can be used in cooperation with the universal casters, and therefore, a lot of forces can be saved when a user pulls the portable mathematical probability demonstrator, and inconvenient in carrying the demonstrator in teaching can be avoided, and the portability of the whole demonstrator can be improved.

Description

Technical field [0001] The invention relates to the technical field of mathematics teaching appliances, in particular to a portable mathematical probability demonstrator. Background technique [0002] With the continuous improvement of education level, the study of mathematics has continued to deepen. However, if the related phenomena of mathematics are just a written introduction, it will inevitably be more boring, especially in terms of probability calculation; probability is a measure of the possibility of random events, generally A real number between 0 and 1 is used to indicate the probability of occurrence of an event, but the demonstration of probability phenomena is more cumbersome, and the process is tedious and wastes a lot of classroom teaching time. Nowadays, the probability teaching demonstration experiment uses a coin flip However, the round coin is often rolled and easily lost, and the coin toss demonstration probability requires a large number of experiments to co...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of the education level, the learning of mathematics is deepening, but if the relevant phenomena of mathematics are only introduced in writing, it will inevitably be boring, especially in terms of probability calculation; probability is a measure of the possibility of random events, generally A real number between 0 and 1 is used to represent the possibility of an event happening, but the demonstration of the probability phenomenon is cumbersome, and the process is tedious and wastes a lot of classroom teaching time, and the current probability teaching demonstration experiment uses the method of flipping a coin However, as a round coin, it is often rolled and easy to lose, and the probability of coin toss demonstration needs a large number of experiments to correctly reflect the probability of heads and tails of the coin. The lengthy process is not conducive to teaching, and the current probability The demonstration device is relatively heavy and needs to be carried by the user, and the limited experimental site is not conducive to teaching demonstration

Images