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A Demonstration Device for Probability Teaching in Advanced Mathematics

A technology of advanced mathematics and demonstration devices, applied in teaching models, educational tools, instruments, etc., can solve problems such as difficulty in maintaining consistent dice strength, dice spilled on the ground, unconvincing problems, etc., to achieve fast teaching speed, reduce work burden, and effect Good results

Active Publication Date: 2021-03-23
济南高投物业管理服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When teachers teach probability to students, dice are used. The teacher shakes multiple dice to get a random number, and then carries out probability teaching. In the existing technology, it is necessary to manually shake the dice, and manually shake the dice Sometimes the dice may fall to the ground, and it is difficult to keep the strength of the artificially shaken dice consistent, so it is unconvincing and increases the work intensity of the teacher

Method used

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  • A Demonstration Device for Probability Teaching in Advanced Mathematics
  • A Demonstration Device for Probability Teaching in Advanced Mathematics
  • A Demonstration Device for Probability Teaching in Advanced Mathematics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see Figure 1-2 , in an embodiment of the present invention, a teaching and demonstration device for advanced mathematics probability includes a base plate 1, a gantry 2, a rocker 3 and a first drive mechanism for driving the rocker 3 to move, and the four corners at the bottom of the base plate 1 Rollers 15 are installed on them, and the rollers 15 are self-locking rollers, which facilitate the movement of the device. The upper surface of the substrate 1 is fixed with a gantry 2, and the gantry 2 is provided with a rocker 3, and the rocker 3 is made of a transparent material. Made, the cylinder door 4 is installed on the rocking cylinder 3 through hinges and buckles, which is convenient for taking and placing the dice, and the portal frame 2 is provided with a first driving mechanism, which includes a first motor 7, a first round Disc 6, connecting rod 8, first rack 9, first flywheel 11, L-shaped shaft 10, sleeve 13 and mounting rod 5, the top of the portal frame 2 is ...

Embodiment 2

[0024] see image 3 The difference between this embodiment of the present invention and Embodiment 1 is that the first drive mechanism is replaced by a second drive mechanism, and the second drive mechanism includes a second motor 21, a second disk 24, a movable rod 22, a second drive mechanism, and a second drive mechanism. Two racks 23, the second flywheel 25, the third disc 20 and a swing lever 27, the middle part of the swing lever 27 is hinged with the top of the portal frame 2 through a pin 26, and the bottom end of the swing lever 27 is fixedly connected with the rocking cylinder 3, A mounting shaft 28 is mounted on the top of the portal frame 2, and a second disk 24 is mounted on the end of the mounting shaft 28. The second disk 24 is connected with the swing rod 27 in cooperation, and the outside of the front end of the second disk 24 is integrally provided with The first straight pin, the swing rod 27 is provided with a first through groove for the first straight pin...

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Abstract

The invention discloses an advanced mathematics probability teaching presentation device, and relates to the technical field of teaching devices, and mainly aims to solve the problem of poor effects and heavy burden caused by artificial swing of a dice in the prior art. The device comprises a substrate, a door-shaped frame, a shaking cylinder and a first driving mechanism, the first driving mechanism is used for driving the shaking cylinder to move, the door-shaped frame is fixed onto the upper surface of the substrate, and the first driving mechanism is arranged on the door-shaped frame and comprises a first motor, a first circular tray, a connecting rod, a first rack, a first flywheel, an L-shaped shaft, a sleeve and a mounting rod. The invention further discloses a technical scheme forreplacing the first driving mechanism by a second driving mechanism, and the second driving mechanism comprises a second motor, a second circular tray, a movable rod, a second rack, a second flywheel,a third circular tray and a swinging rod. The device is provided with the first driving mechanism, multiple teaching experiments can be rapidly implemented, the probability of corresponding points iscalculated, teaching speed is high, effects are good, and workload is relieved.

Description

technical field [0001] The invention relates to the technical field of teaching equipment, in particular to an advanced mathematics probability teaching demonstration device. Background technique [0002] In advanced mathematics teaching, probability is a concept defined by people according to the rules of random events. In classical probabilistic teaching, teachers often use some actual probability demonstration experiments to make students learn the knowledge of probability more intuitively. The most common one is the coin tossing experiment, that is, after multiple coin tosses, the probability of getting the head and tail of the coin is 1 / 2; or throwing dice, and counting the probability of each point of the dice, that is, the probability is six One-half; or the number of balls with the same number of different colors, the probability of randomly drawing each color ball. [0003] When teachers teach probability to students, dice are used. The teacher shakes multiple dice...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 韩登利
Owner 济南高投物业管理服务有限公司
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