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An Interesting Teaching Model of Probability Events

A teaching model and event technology, applied in the field of interesting teaching models of probability events, can solve the problems of limited number of statistics, traditional single simulation demonstration method, cumbersome operation, etc.

Active Publication Date: 2020-10-30
德州纺兴纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above situation, in order to make up for the technical deficiencies existing in the prior art, the present invention provides a probabilistic event interesting teaching model, which aims to solve the problems existing in the prior art such as cumbersome operation, limited counting times, and traditional single simulation demonstration method

Method used

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  • An Interesting Teaching Model of Probability Events
  • An Interesting Teaching Model of Probability Events
  • An Interesting Teaching Model of Probability Events

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Embodiment Construction

[0011] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0012] Depend on Figure 1 to Figure 4 Given, the present invention includes a casing 1 on which a cam 3 is connected via a horizontally arranged rotating shaft 2, and the casing 1 has a cam 3 placed on the outer circumference of the cam 3 and sliding radially along the axis of the rotating shaft 2. The first sliding rod 4, the first sliding rod 4 is connected with the housing 1 through the first spring 5, and under the elastic force of the first spring 5, the first sliding rod 4 slides centripetally in the axial direction of the rotating shaft 2, The end of the first sliding rod 4 close to the rotating shaft 2 is pressed into contact with the outer edge surface of the cam 3. When the cam 3 rotates, the first sliding rod 4 is squeezed by the outer edge surface of the cam 3 and the elastic force of the spring 5 function, so that the ...

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Abstract

The invention relates to a probabilistic event interesting teaching model which comprises a shell, wherein a cam is connected to the shell through a rotating shaft. A first sliding rod sliding radially along the axis of the rotating shaft is arranged on the shell, and the first sliding rod slides to the axis direction of the rotating shaft through a first spring elastic force, so that the first sliding rod is in extrusion contact with an outer edge surface on the cam; and a second sliding rod sliding radially along the axis of the rotating shaft. The shell is provided with a contact switch, and the first slide bar is provided with a dial block corresponding to the contact switch. The invention simplifies the steps of random event demonstration and statistics, shortens the time of demonstration and statistics, has high demonstration and statistics efficiency, good portability, and supports a plurality of sampling statistics methods.

Description

technical field [0001] The invention relates to teaching tools, in particular to a probability event interesting teaching model. Background technique [0002] In the process of probability teaching, in order to let students intuitively understand the distribution and statistics of probability, various demonstration devices are usually used, which can not only express probability events vividly, but also improve students' interest in learning; The probability demonstration device is still limited to the tedious and boring simulation methods of coin tossing and ball dropping, which is not conducive to the continuous demonstration of probability events and a large number of statistics. The students' ability of thinking divergence. [0003] In addition, the existing device relies on coins or small balls, etc., so its volume is relatively large, and it is troublesome to carry and store, which is inconvenient for classroom teaching. Excessive class time. SUMMARY OF THE INVENTI...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 陈玉发田颖科陈敏张小静
Owner 德州纺兴纤维有限公司
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