Probability calculation demonstration equipment for mathematics education

A technology of probability calculation and mathematics, applied in the field of mathematics education, can solve the problems of affecting the demonstration effect, the demonstration effect is not obvious enough, intuitive and so on

Inactive Publication Date: 2021-01-05
ZHENGZHOU UNIVERSITY OF AERONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of mathematics teaching, it is often necessary to use demonstration equipment to demonstrate probability calculations. Most of the traditional mathematical probability demonstration

Method used

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  • Probability calculation demonstration equipment for mathematics education
  • Probability calculation demonstration equipment for mathematics education
  • Probability calculation demonstration equipment for mathematics education

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] refer to Figure 1-4 , a demonstration device for probability calculation for mathematics education, comprising a housing 1 with legs welded at the four corners of the outer wall of the bottom, a fixed disc end 4 welded to the top of the housing 1, and a decelerating disc fixed to one side of the fixed disc end 4 by bolts. The motor 24 and the output shaft of the deceleration motor 24 are connected to the rotary column 6 through a coupling, and the outer wall of one end of the rotary column 6 is keyed to a turntable 8, and one end of the turntable 8 is provided with a discharge port 7, and the turntable 8 is far away from the discharge port One end of 7 has a feeding tank, and one side of the inner wall of the feeding tank is connected with an arc-shaped cover plate 10 by a hinge, and an inner convex plate 21 is fixedly installed on the circumferential inner wall of the turntable 8, and the bottom end of the fixed disk end 4 is welded with an outlet. The ball tube 11, a...

Embodiment 2

[0040] refer to Figure 5 , a kind of demonstration equipment used for probability calculation for mathematics education. Compared with Embodiment 1, this embodiment also includes arc-shaped supporting plates 30 welded on both sides of the top outer wall of the guide ball platform 28, and the top of the arc-shaped supporting plate 30 is welded There are cylinders 29 .

[0041] In the present invention, the opposite sides of the curved supporting plate 30 and the ball guide platform 28 are welded with reinforced inner arc plates 31 .

[0042] When the present invention is in use: use the provided arc supporting plate 30 and cylinder 29 to replace the arc top convex line 17, on the one hand, the table tennis ball is randomly bounced into the ball cylinder 18 through the cylinder 29; on the other hand, through the arc supporting plate 30, Play the effect of guiding and speeding up to table tennis, prevent table tennis from accidentally staying on the ball guiding platform 28, ther...

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Abstract

The invention belongs to the technical field of mathematics education, particularly relates to probability calculation demonstration equipment for mathematics education, and provides the following scheme for solving the problems that most of traditional mathematics probability demonstration devices are simple in structure and not obvious in demonstration effect: the probability calculation demonstration equipment comprises a shell of which four corners of the outer wall of the bottom are welded with supporting legs; a fixed disc end is welded to the top end of the shell, a gear motor is fixedto one side of the fixed disc end through a bolt, an output shaft of the gear motor is connected with a rotary column through a coupler, the outer wall of one end of the rotary column is in key connection with a rotary disc, a discharging opening is formed in one end of the rotary disc, and a feeding groove is formed in the end, away from the discharging opening, of the rotary disc. According to the invention, the table tennis ball can be randomly bounced to the ball guide cylinders on the two sides through the ball guide platform and the arc top raised line, so that effective probability demonstration processing is achieved; by arranging the guide blocks on the inner walls of the ball guide cylinder,s the table tennis ball can be guided, and therefore it is guaranteed that the table tennis ball vertically falls.

Description

technical field [0001] The invention relates to the technical field of mathematics education, in particular to a demonstration device for probability calculation used in mathematics education. Background technique [0002] Probability theory is a branch of mathematics that studies the laws of random phenomena. Random phenomena are relative to deterministic phenomena. Phenomena that inevitably produce a certain result under certain conditions are called deterministic phenomena. For example, under standard atmospheric pressure, when pure water is heated to 100°C, the water will inevitably boil. Random phenomenon means that under the condition that the basic conditions remain unchanged, before each experiment or observation, it is not certain what kind of result will appear, showing chance. For example, if you flip a coin, it may come up heads or tails. The realization and observation of a random phenomenon is called a random experiment. Each possible outcome of a random ex...

Claims

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Application Information

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IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 焦建锋黄宏伟刘霞
Owner ZHENGZHOU UNIVERSITY OF AERONAUTICS
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