| 摘要 |
PURPOSE: A connection structure of a three-dimensional teaching tool for a Pythagorean theorem is provided to reduce an installation period and prevent the loss of the teaching tool by using a flexible tape to adhere each side plate and each coupling part of the side plates of a teaching tool to each other. CONSTITUTION: An isosceles triangle(100) is formed with three sides including a base line(b), an oblique side(c), and height(a). A three-dimensional teaching tool for a Pythagorean theorem includes three trigonal pyramids(10,20,30). The trigonal pyramids correspond to three sides of the isosceles triangle. The oblique sides of the isosceles triangles are adhered each other by using a flexible tape.
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