An advanced mathematical probability demonstration device

Abstract

The invention discloses a higher mathematics probability demonstrating device. The higher mathematics probability demonstrating device is characterized in that an iron moving seat is arranged in the accommodating groove of the base of the device, and a plurality of electromagnets are further arranged in the base along the circumferential direction of the accommodating groove; a rotary table is arranged on the moving seat, a first support is fixed to the rotary table, a transparent semispherical shell is rotatably connected to the first support, and the entrance of the semispherical shell is sealed through a transparent circular plate; a plurality of dices are arranged in the semispherical shell, each face of each dice is provided with a two-dimensional code representing the face, and the circular plate is provided with a two-dimensional code scanning device; the semispherical shell is further provided with a vibrating device and a light curtain device; the two-dimensional code scanningdevice, the vibrating device and the light curtain device are connected with a microprocessor; the microprocessor is further connected with a timing module, a random selection module and a touch display screen. The higher mathematics probability demonstrating device has the advantages that the device is high in automation level and capable of demonstrating complex probability events when a plurality of dices are combined, the whole demonstrating process does not consume manpower, and the device is visual and convenient in demonstrating.

Description

technical field [0001] The invention relates to the field of mathematics teaching aids, in particular to an advanced mathematics probability demonstration device. Background technique [0002] In the learning of higher mathematics probability, it is often used to calculate the probability of a certain side or certain sides of the thrown dice by throwing the dice several times, so as to verify the correctness of the theoretical probability in the probability theory. However, such experiments The method is relatively simple, time-consuming and labor-intensive, and cannot verify more complex probability events. Generally, only one or several dice are used for experiments in the verification, and the number of trials is relatively small, so the verified results are difficult to be representative and universal. Contents of the invention [0003] The purpose of the present invention is to overcome the problems in the above-mentioned prior art and provide a high-level mathematica...

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Problems solved by technology

[0002] In the learning of higher mathematics probability, it is often used to calculate the probability of a certain side or certain sides of the thrown dice by throwing the dice several times, so as to verify the correctness of the theoretical probability in the probability theory. However, such experiments The method is relatively simple, time-consuming and labor-intensive, and cannot verify more complex probability events. Generally, only one or several dice are used for experiments in the verification, and the number of trials is relatively small, so the verified results are difficult to be representative and universal

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