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Sound transmission teaching aid

A sound transmission and teaching aid technology, applied in the field of sound transmission teaching aids, can solve the problems of lack of teaching aids, poor intuition, and students' cognitive ability cannot be brought into play, and achieve the effect of improving hands-on ability

Inactive Publication Date: 2009-12-02
徐超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there are generally no special teaching aids when teaching natural science classes to preschool children and low grade students.
Especially in the teaching process where the air can transmit sound, only relying on the teacher's teaching, the intuitiveness is poor, and the cognitive ability of the students cannot be brought into play

Method used

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  • Sound transmission teaching aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Example 1. A sound propagation teaching aid, which includes a container 6, a syringe 1 and a buzzer 5, the opening of the upper part of the container 6 is sealed by a rubber stopper 7, and the needle 8 of the syringe 1 is inserted into the container 6 through the rubber stopper 7; The buzzer 5 is placed in the container 1 , the wire 2 connected to the buzzer 5 extends out of the container 6 , and a power supply 4 and a switch 3 connected in series with the buzzer 5 are arranged on the wire 2 .

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PUM

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Abstract

The invention discloses a sound transmission teaching aid, comprising a container, an injector and a buzzer. An opening at the upper part of the container is sealed by a rubber plug; the pinhead of the injector is inserted into the container by the rubber plug; the buzzer is placed into the container; a lead connected with the buzzer extends out from the container; and the lead is provided with a power source and a switch connected with the buzzer in series. The invention provides the teaching aid especially used for airborne sound teaching and used for teaching preschool children and junior students natural science; during using, the switch is turned on, the buzzer is started to make sound; the injector is drawn outwards to extract a part of air in the container; because the air is reduced, the bumming of the buzzer is reduced; the students can perceive the transaudient capability of the air vividly and intuitively, and the invention can interest the students and is beneficial for improving the practical ability of the students.

Description

technical field [0001] The invention relates to a teaching aid, in particular to a sound transmission teaching aid. Background technique [0002] In the prior art, there are generally no special teaching aids when teaching natural science classes to preschool children and low grade students. Especially in the teaching process where the air can transmit sound, relying only on the teacher's teaching is not intuitive, and the cognitive ability of the students cannot be brought into play. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sound transmission teaching aid with a simple structure, vivid and intuitive, aiming at the deficiencies of the prior art. [0004] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention is a teaching aid for sound transmission, which is characterized in that it includes a container, a syringe and a b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/14
Inventor 徐超
Owner 徐超
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