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Pythagorean theorem teaching aid

A technology of Pythagorean theorem and teaching aids, which is applied in the field of teaching experiments and can solve the problems of complicated and unintuitive demonstration process

Inactive Publication Date: 2015-06-17
XIAN BOZHI TEACHING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome problems such as complicated demonstration process and intuition in the prior art

Method used

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  • Pythagorean theorem teaching aid

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Embodiment Construction

[0010] Such as figure 1 A schematic diagram of the Pythagorean theorem teaching aid shown includes a first rectangular parallelepiped module 1, a second rectangular parallelepiped module 2, a straight triangular prism module 3, and a third rectangular parallelepiped module 4; wherein the bottom surface of the straight triangular prism module 3 is a right triangle with a long hook Is a, the strand length is b, and the chord length is c; the heights of the first rectangular parallelepiped module 1, the second rectangular parallelepiped module 2, the straight triangular prism module 3, and the third rectangular parallelepiped module 4 are equal; the sum of the lengths of the first rectangular parallelepiped module 1 The width is a, it shares one side with the straight triangular prism module 3, the length and width of the second rectangular parallelepiped module 2 are both b, and the same side is shared with the straight triangular prism module 3, and the length and width of the th...

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Abstract

The invention belongs to the technical field of teaching equipment, and specifically provides a Pythagorean theorem teaching aid. The teaching aid comprises three cuboid modules, a straight triangular prism module, and rubber plugs. The bottom surface of the straight triangular prism module is a right triangle, wherein the length of the short right-angle side is a, the length of the long right-angle side is b, and the length of the hypotenuse is c. The three cuboid modules and the straight triangular prism module are of equal height. The three cuboids are of equal length and width, and are recorded as a, b and c. The three cuboid modules respectively share one side with the straight triangular prism module. The top ends of the cuboid modules are respectively provided with a small hole into which liquid can be injected. When the rubber plugs of the straight triangular prism are opened, liquid can circulate in the whole system. In addition, the whole teaching aid is made of transparent material, and the inside of the teaching aid can be seen clearly. The teaching aid visually verifies the Pythagorean theorem and the converse theorem thereof from actual situations, and is simple to operate. The principle is easy to understand. The teaching aid plays a great positive role in helping students to learn and understand the Pythagorean theorem.

Description

Technical field [0001] The invention belongs to the field of teaching experiments, and specifically relates to a teaching aid for the Pythagorean theorem. Background technique [0002] The Pythagorean theorem is a basic geometric theorem. It is one of the important mathematical theorems discovered and proved by mankind in the early days. It is one of the most important tools for solving geometric problems with algebraic thinking, and it is also one of the links of the combination of numbers and shapes, so its proof appears very important. [0003] There are many ways to prove the Pythagorean theorem, most of them use algebraic methods, or split, puzzle, and combine. These methods are either purely proved from a theoretical perspective, and it is difficult to explain in practice; some are easy to make The corresponding molds, that is, teaching aids for teachers, but most of the teaching aids are troublesome to divide. After the modules are moved and combined, the process is complic...

Claims

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Application Information

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IPC IPC(8): G09B23/04
CPCG09B23/04
Inventor 乔国强
Owner XIAN BOZHI TEACHING RES INST
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