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Telescopic combined teaching tool

A telescopic and teaching aid technology, applied in writing utensils, printing, etc., can solve problems such as single function, adverse effects on normal teaching, and influence on teaching progress and quality, so as to achieve the effect of improving intuition

Inactive Publication Date: 2016-01-27
史瑞霞 +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of mathematics teaching, due to the single function of various ruler devices, such as rulers, compasses, protractors, etc., teachers always carry a variety of teaching ruler teaching aids every time they attend class, and carrying multiple rulers at the same time will make people feel uncomfortable. It is very inconvenient, especially when you forget to carry any one, it will have a negative impact on the normal teaching; at the same time, changing the teaching aids in the teaching will affect the progress and quality of the teaching, and also increase the teacher's work. strength

Method used

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Examples

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Embodiment Construction

[0022] Such as Figure 1 to Figure 5 The telescopic composite teaching aid shown is made up of a fixed ruler 1, a moving ruler 2 of an "I" shape, and a moving ruler 3 of an "I" shape. One end of the fixed ruler 1 has a protractor 4, and the protractor 4 has an arc-shaped groove 12, the sliding needle 11 slides in the arc-shaped groove 12, and the other end has a steel needle 6; one end of the moving ruler 2 has a sliding needle 11, and the other end has a gauge Foot clip 5, chalk is inserted into gauge foot clip 5; moving ruler 2 is hinged with protractor 4 of fixed length 1 through hinge shaft 7, and the hinge point coincides with the center of circle of protractor 4; movable ruler 3 is connected with fixed length 1 through hinge shaft 7 The ruler section of the ruler is hinged, and the hinge point is located on the symmetrical center line of the ruler and the movable ruler; the movable ruler 2 and the movable ruler 3 are connected by a slider, and there is a chute 9 on the m...

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Abstract

The invention discloses a telescopic combined teaching tool which is composed of a fixed ruler 1, an I-shaped movable ruler 2 and an I-shaped movable ruler 3. A protractor is arranged at one end of the fixed ruler 1 and a steel pin is arranged at the other end of the fixed ruler 1. A sliding pin is arranged at one end of the I-shaped movable ruler 2 and a compass foot clamp is arranged at the other end of the I-shaped movable ruler 2. The movable ruler 2 is hinged to the protractor of the fixed ruler 1 through a hinge shaft and a hinging point coincides with the circle center of the protractor. The movable ruler 3 is hinged to a straight ruler section of the fixed ruler 1 through a hinge shaft and a hinging point is located on the symmetric center line of a straight ruler and the movable ruler 3. The movable ruler 2 and the movable ruler 3 are connected through a sliding block, sliding grooves are formed in the movable rulers, and the combined teaching tool is of a telescopic structure. The telescopic combined teaching tool has the functions of a compass, the protractor, a set square and the straight ruler, the requirements of mathematical teaching, especially solid geometry teaching are met, the situation that a teacher needs to replace teaching tools frequently in the drawing process is avoided, the drawing speed can be increased, and teaching quality and efficiency can be improved; and the teaching tool is telescopic so that the use requirements of different occasions can be met.

Description

technical field [0001] The invention relates to the technical field of teaching aids, in particular to telescopic composite teaching aids. Background technique [0002] In the process of mathematics teaching, due to the single function of various ruler devices, such as rulers, compasses, protractors, etc., teachers always carry a variety of teaching ruler teaching aids every time they attend class, and carrying multiple rulers at the same time will make people feel uncomfortable. It is very inconvenient, especially when you forget to carry any one, it will have a negative impact on the normal teaching; at the same time, changing the teaching aids in the teaching will affect the progress and quality of the teaching, and also increase the teacher's work. strength. Contents of the invention [0003] Aiming at the problems in the prior art above, the present invention discloses a telescopic compound teaching aid, which overcomes the deficiencies of the prior art, and provides...

Claims

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Application Information

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IPC IPC(8): B43L13/00
Inventor 史瑞霞顾青林陈利艳李全省程利娟张丽敏赵玉洁
Owner 史瑞霞
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