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Geometry chessboard

A chessboard and geometry technology, applied in the field of mathematics teaching aids, can solve problems such as single function, difficult students' academic performance, and students' difficulty in understanding three-dimensional geometric figures, so as to achieve the effect of reducing difficulties

Inactive Publication Date: 2015-12-16
叶兆铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the mathematics teaching of geometry courses, there are generally the weaknesses of fixed geometry teaching aids, single function, weak operability, and difficult for students to use. To understand complex three-dimensional geometric figures, it is difficult for teachers to develop their teaching skills, and it is difficult for many students to make breakthroughs in their academic performance. This situation is very prominent in the college entrance examination

Method used

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specific Embodiment 1

[0040] Specific embodiment one, build three-dimensional geometry figure:

[0041] figure 1 For the composition example of the three-dimensional geometry described in the specific embodiment of the present invention, the selected components have a chessboard platform, a positioning layer (hole), a moving column, a string, a moving clip, a mark, a rope buckle, and the moving column passes through the positioning layer (hole). ) is fixed on the chessboard platform, and the middle part of the two thin ropes is tied to the appropriate position of the moving column with a rope buckle. The four sides, and finally mark each point in the figure with the standard sheet, which is a three-dimensional figure of a cone.

specific Embodiment 2

[0042] Concrete embodiment two, build three-dimensional geometry figure:

[0043] Quadrilateral ABCD is a square (placed vertically, with A and B on top), PD⊥plane ABCD, ∠DPC=30°, AF⊥PC at point F, FE∥CD, intersect PD at point E,

[0044] The selected components include chessboard platform, positioning layer (hole), moving column, string, moving clip, standard piece, rope buckle, thin straight rod,

[0045] Select two points C and D as squares at the appropriate positions on the chessboard platform, and fix the two moving columns on the two points C and D of the chessboard platform through the positioning layer (hole), and surround them with a mobile clip and a thin rope. ΔPCD, and ∠DPC=30°, PD⊥ plane ABCD; the middle parts of the two thin ropes are fastened in the small hole at point A on the moving column by the rope buckle, and one end of the thin rope is tied at point B on the other moving column, forming Square ABCD, the other end of the string is fixed at two points F a...

specific Embodiment 3

[0046] Concrete embodiment three, construct plane geometry figure:

[0047] The composition example of the plane geometry described in the specific embodiment of the present invention, as selecting chessboard platform, string, movable clamp, standard sheet, thin straight bar, circular mold piece for selection, each component is placed on the appropriate position on the chessboard platform, just It can form the tangent of the circle, the triangle inscribed in the circle, and the triangle circumscribed in the circle. Finally, each point in the figure is calibrated with a scale.

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Abstract

The invention discloses a geometry chessboard used for mathematics teaching, comprising a chessboard platform, a positioning layer (hole), a movable column, cords, movable clamps, marking sheets, a cord fastener, thin and straight rods, and a geometry die sheet. According to actual requirements of a geometry question, different components are selected to construct a required geometric graph, wherein the movable column is fixed on the chessboard platform through the positioning layer (hole); the movable clamps and the cord fastener are used for fixing the cords used for fixing a graph; the thin and straight rods are used for connecting lines; the marking sheets are used for calibrating geometric points; the geometry die sheet is used for constructing corresponding geometric graphs. The geometry chessboard can construct planer, three-dimensional and analytic geometric graphs, and plot graphs to help resolving geometry test questions in books, exercises, examinations and even in the college entrance examination.

Description

technical field [0001] The invention relates to a teaching aid for mathematics, in particular to a geometric chessboard for teaching geometry. Background technique [0002] At present, in the mathematics teaching of geometry courses, there are generally the weaknesses of fixed geometry teaching aids, single function, weak operability, and difficult for students to use. To understand complex three-dimensional geometric figures, it is difficult for teachers to develop their teaching skills, and it is difficult for many students to make breakthroughs in their academic performance. This situation is very prominent in the college entrance examination. Contents of the invention [0003] The present invention proposes a new method that is simple, fast, intuitive, portable and practical, scientific and standardized, and uses points, lines, surfaces, and bodies as geometric elements to describe geometric figures, especially three-dimensional geometric figures. It is a very good au...

Claims

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Application Information

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IPC IPC(8): G09B23/04
Inventor 叶兆铭叶常仙
Owner 叶兆铭
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