Probability theory experiment model teaching aid

An experimental model and technology of probability theory, applied in the direction of educational tools, teaching models, instruments, etc., can solve the problems that students cannot personally participate in probability experiments, consume a lot of manpower and material resources, and cannot deepen students' understanding of probability, so as to achieve rich experimental data, Improve randomness and increase the effect of persuasion

CN108961942AActive Publication Date: 2018-12-07ANHUI UNIV OF SCI & TECH
9 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-12-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the technical field of a mathematics teaching aid and particularly relates to a probability theory experiment model teaching aid. The teaching aid comprises a casing, a support, a disposing groove, a buffer hole, an ejection groove and an ejection module, wherein the ejection module comprises a first limit unit, a second limit unit, a guide column, a fixing block and a spring, the first limit unit and the second limit unit have the same structures and are symmetric to each other, the first limit unit comprises a pressing column, a swing plate and a rope, one end of thepressing column is hinged with one end of the swing plate, the pressing column moves to push the swing plate to rotate around a rotation shaft, one side of an upper end of the swing plate is providedwith two half-circle projections, one side of a lower end of the swing plate is fixedly connected with the rope, the rope is fixedly connected with a lower end of the guide column after passing through a guide roller, an upper end of the guide column is fixedly connected with a bottom portion of the spring, and the spring is arranged between the two swing plates. The probability theory experimentmodel teaching aid is advantaged in that through setting the ejection module, a batch of coins are ejected, continuous ejection of the coins can be achieved, and experiment efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of mathematics teaching aids, in particular to a probability theory experimental model teaching aid. Background technique

[0002] Probability, also known as probability, chance rate, chance (probability) or possibility, is a basic concept of probability theory. Probability is a measure of the possibility of a random event occurring, and generally a real number between 0 and 1 represents the possibility of an event occurring. The closer to 1, the event is more likely to occur; the closer to 0, the event is less likely to occur, which is an objective argument rather than a subjective verification.

[0003] In college advanced mathematics, in order to enable students to learn the knowledge of probability more intuitively, teachers often conduct some practical demonstration experiments of probability. The probability of a coin ending up heads or tails is 1 in 2.

[0004] Existing artificial coin tossing expe...

Examples

Embodiment approach

[0025] As an embodiment of the present invention, the limiting hole 52 is a tapered hole, and one end of the elastic plug 5 is set in a tapered shape. Reduce the stress of the pull rope 33 when pulling the elastic plug 5 through the limiting hole 52, improve the service life of the pull rope 33, thereby increase the stability of the equipment, facilitate a large number of repeated tests, and improve the efficiency of the experiment.

[0026] As an embodiment of the present invention, the outer ring of the pressing column 31 is covered with the annular airbag 6; the buffer hole 13 is fixedly connected with an annular support airbag 61, and the support airbag 61 communicates with the annular airbag 6, so that The thickness of the elastic piece 25 is smaller than the thickness of the coin. When pushing the pressing column 31, the annular airbag 6 is pressed and supplies air to the support airbag 61. After the annular support airbag 61 is inflated, the coin in the buffer hole 13 i...