Mathematics probability teaching demonstration device

A demonstration device and probability technology, which is applied in the field of mathematical probability teaching demonstration devices, can solve the problems of lack of teaching demonstration devices and insufficient vividness and specificity of teaching, and achieve the effect of intuitive teaching process and easy understanding

Inactive Publication Date: 2019-07-12
HUANGHUAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, demonstration teaching is more and more widely used in teaching, but in mathematics probability teaching, there is a lack of teaching demonstration devices, and the teaching is not vivid and specific enough.

Method used

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  • Mathematics probability teaching demonstration device
  • Mathematics probability teaching demonstration device
  • Mathematics probability teaching demonstration device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see Figure 1-4 , in an embodiment of the present invention, a mathematical probability teaching and demonstration device includes a base 1, a vibrating cylinder 4 and a collection box 26, a vibrating cylinder 4 is arranged above the base 1, and a feeding port 8 is installed on the top of the vibrating cylinder 4 , the demonstration ball is thrown into the vibrating cylinder 4 through the feed port 8, and the inside of the vibrating cylinder 4 is equipped with a dispersing disc 9. The surface of the dispersing disc 9 is processed with a number of splitter grooves 10. The splitter grooves 10 are radially distributed, and the bottom of the diverter groove 10 is opened There are several dispersing holes 11, and the diameter of dispersing holes 11 is slightly larger than that of the demonstration balls. The demonstration balls of different colors are put into the vibrating cylinder 4 through the feeding port 8, and fall on the dispersing disc 9. Demonstration balls are disp...

Embodiment 2

[0027] On the basis of Embodiment 1, the bottom of the vibration cylinder 4 is fixedly connected with a pillar 5, and the lower end of the pillar 5 is sleeved with a sleeve 6, and the pillar 5 is slidingly connected with the sleeve 6, and a spring 7 is installed inside the sleeve 6. The upper end of 7 abuts against pillar 5, the lower end of spring 7 abuts against the bottom of sleeve 6, and the upper surface of vibrating cylinder 4 is equipped with a vibrating mechanism, vibrating mechanism includes vibrating motor 12, eccentric block 13, vibrating motor 12 and vibrating cylinder The upper surface of 4 is fixedly connected, the shaft extension end of the vibration motor 12 is provided with an eccentric block 13, and the vibration motor 12 is started to drive the eccentric block 13 to rotate. With the cooperation of the spring 7, the vibration cylinder 4 is driven to vibrate up and down. The bottom is fixedly connected with a support foot 2, and the lower surface of the support...

Embodiment 1、 Embodiment 2

[0028] In conjunction with embodiment 1 and embodiment 2, the working principle of the present invention is: drop the demonstration balls of different colors into the feed port 8, the demonstration balls fall on the dispersing disc 9, and under the action of the splitter tank 10, the demonstration balls are dispersed , and then fall to the below of the dispersing disc 9 through the dispersing hole 11. By setting the dispersing disc 9, the demonstration balls can be distributed more evenly in the vibrating cylinder 4, and the vibration motor 12 is started to drive the eccentric block 13 to rotate. With cooperation, the vibration cylinder 4 is driven to vibrate up and down, thereby driving the demonstration ball to vibrate up and down, so that the demonstration balls of different colors are mixed more evenly, and the stirring motor 15 is started to drive the half bevel gear 16 to rotate. When the half bevel gear 16 meshes with the left bevel gear 17 , drive the rotating shaft 14 ...

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Abstract

The invention relates to the field of teaching devices, in particular to a mathematics probability teaching demonstration device. The mathematics probability teaching demonstration device comprises abase, a vibration cylinder and a collecting box, the vibration cylinder is arranged on the base, a dispersing disc is installed in the vibration cylinder, a rotating shaft is installed below the dispersing disc, a left bevel gear and a right bevel gear sleeve the right end of the rotating shaft, a stirring motor is fixedly connected to the side wall of the vibration cylinder, a semi-bevel gear sleeves the axle extension end of the stirring motor, the semi-bevel gear is intermittently engaged with the left bevel gear and the right bevel gear, and the collecting box is arranged under a discharging port, demo balls with different colors are put into a feeding port and fall on the dispersing disc, under the action of a distributing groove, the demo balls are dispersed, through the arrangementof the dispersing disc, the demo balls can be distributed more evenly in the vibration cylinder, a discharging plate is pulled to right, and thus a discharging hole is moved under the discharging port, by observing the color of each falling demo ball, the probability of the color is recorded and analyzed, the convenience is fully achieved, and the teaching process is more intuitive.

Description

technical field [0001] The invention relates to the field of teaching devices, in particular to a mathematical probability teaching demonstration device. Background technique [0002] Probability is a science and technology that studies random events. Probability also studies numbers between 0 and 1. 0 means no event occurs, 1 means event occurs, and greater than 0 and less than 1 is a probability. [0003] Phenomena observed in nature and society are divided into: deterministic phenomena and random phenomena. Probability is the branch of mathematics that studies the quantitative laws of random phenomena. On the one hand, it has its own unique concepts and methods, on the other hand, it is closely related to other branches of mathematics, and it is an important part of modern mathematics. Probability is widely used in almost all fields of science and technology, such as weather forecasting, earthquake forecasting, sampling survey of products; various sectors of industrial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 李秋英高桂宝张宝刚雷仙鹤
Owner HUANGHUAI UNIV
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