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Advanced mathematics probability demonstration device

A demonstration device, advanced mathematics technology, applied in the field of education, can solve problems such as energy waste, and achieve the effect of small use limitations

Inactive Publication Date: 2019-05-14
王玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Probability is a subject belonging to advanced mathematics. In order to strengthen students' cognition, teachers of advanced mathematics sometimes assist teaching through physical demonstrations, which requires the use of probability demonstration devices. At present, most probability demonstration devices require electricity. Drive, has certain limitations, but also caused a waste of energy

Method used

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Embodiment 1

[0026] see Figure 1~4 , in an embodiment of the present invention, a high-level mathematical probability demonstration device includes a storage box 1, a discharge box 4, a discharge pipe 7 and a material receiving box 8 connected sequentially from top to bottom, and the storage box 1 is provided with There are several plastic balls 101 of different colors, and the storage box 1 is fixed on the base 9 through the support frame 91; the upper and lower sides of the discharge box 4 are symmetrically provided with through holes 41, and the through holes 41 on the upper side are opened oppositely. The leak hole 12 at the bottom of the material storage box 1, the through hole 41 on the lower side is facing the upper nozzle of the feeding pipe 7, and the lower nozzle of the feeding pipe 7 is facing the feeding opening at the top of the feeding box 8 81. When in use, the plastic ball 101 enters the material receiving box 8 through the storage box 1, the discharge box 4 and the discha...

Embodiment 2

[0036] An embodiment of the present invention provides an operation method of the above-mentioned advanced mathematical probability demonstration device, including the following steps:

[0037] 1) In the initial state, ensure that the lever 61 is at the maximum stroke position clockwise, so that the transfer slot 51 faces downward;

[0038] 2) Operate the driving disc 21 to drive the first rotating shaft 2 to rotate. During the specific operation, apply an instantaneous tangential force to the driving disc 21, and then let the first rotating shaft 2 rotate under the action of inertial force;

[0039] 3) After the first rotating shaft 2 stops rotating, turn the lever 61 to the maximum travel position counterclockwise, so that the transfer groove 51 faces upward, and the plastic ball 101 at the bottom of the storage box 1 enters the transfer groove 51;

[0040] 4) Then turn the lever 61 to the maximum stroke position clockwise, and the plastic ball 101 entering the transfer groo...

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Abstract

The invention discloses an advanced mathematics probability demonstration device, which relates to the education field, and mainly solves the problem that a conventional probability demonstration device needs power drive and has certain limitation. The advanced mathematics probability demonstration device comprises a storage box, a discharge box, an unloading tube and a receiving box which are sequentially connected from top to bottom, wherein a plurality of plastic balls of different colors are arranged in the storage box; the center position of the inner cavity of the storage box is rotatably connected with a first rotary shaft; a plurality of turnover plates are fixedly arranged at the periphery of the shaft body of the first rotary shaft; the front end of the first rotary shaft extendsout of the storage box, and is connected with a drive disc; a rotary roller is arranged in the discharge box; the rotary roller is connected with the discharge box through a second rotary shaft; a transfer slot is formed in the rotary roller; and the front end of the second rotary shaft extends out of the discharge box, and is connected with a pull rod. The advanced mathematics probability demonstration device adopts a manual drive way to drive the first rotary shaft and the second rotary shaft, does not need an external power supply, is small in use limit, and is more energy-saving and environmentally friendly.

Description

technical field [0001] The invention relates to the field of education, 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 those who refer to the more in-depth algebra, geometry, and simple set theory and logic in middle school as secondary mathematics, and regard them as elementary mathematics in primary and secondary schools and university mathematics. Phase transition to higher mathematics. It is generally believed that advanced mathematics is a basic subject formed by calculus, more in-depth algebra, geometry and the intersecting content between them. [0003] Probability is a subject belonging to advanced mathematics. In order to strengthen students' cognition, teachers of advanced...

Claims

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Application Information

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IPC IPC(8): G09B23/02
Inventor 王玲
Owner 王玲
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