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Combined mathematic ruler

A combination of mathematics and straightedge technology, applied in the field of combined mathematical rulers, can solve the problems of affecting drawing efficiency, single function, inconvenient to carry and use, etc., and achieve the effects of improving drawing efficiency, high angle measurement and drawing accuracy, and reducing difficulty

Inactive Publication Date: 2017-06-16
李国云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Mathematics teachers usually use a variety of auxiliary tools including rulers, triangular plates, protractors and compasses when teaching and teaching, especially when teaching geometry and related subjects. These tools are independent of each other and have functions Single, needs to be exchanged frequently during use, and it is inconvenient to carry and use, which greatly affects the efficiency of drawing

Method used

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  • Combined mathematic ruler

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Embodiment Construction

[0010] The present invention will be further clarified below in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" "Respectively refers to the direction toward or away from the geometric center of a particular component.

[0011] Such as figure 1 As shown, the combined mathematical ruler disclosed in the present invention includes a main ruler composed of a protractor 2 and a ruler 1 and a check ruler 3 with one end movably arranged at the center of the protractor 2, and the protractor 2 is arranged on the lower side of the ruler 1. The invention is simple in structure, convenient to use, reliable in quality connecti...

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Abstract

The combined mathematical ruler disclosed by the invention comprises a main ruler composed of a protractor and a ruler, and a calibration ruler with one end movably arranged at the center of the protractor, and the protractor is arranged at the lower side of the ruler. The invention is simple in structure, easy to use, greatly improves the efficiency and accuracy of drawing in high school mathematics teaching activities, realizes accurate reading and drawing at any angle, realizes the combination of ruler and compasses, and provides convenience for teaching activities .

Description

Technical field [0001] The invention relates to a high school mathematics teaching tool, in particular to a combined math ruler. Background technique [0002] When teaching mathematics, especially when teaching geometry and related subjects, mathematics teachers usually use a variety of auxiliary tools including rulers, set squares, protractors, and compasses. These tools are independent of each other and have functions. Single, it needs to be exchanged frequently when in use, it is inconvenient to carry and use, which greatly affects the efficiency of drawing. Summary of the invention [0003] The combined math ruler disclosed by the invention has simple structure and convenient use, and realizes the multi-function and integration of the ruler for mathematics teaching in high school, thereby facilitating teaching drawing and improving drawing efficiency. [0004] The combined mathematical ruler disclosed in the present invention includes a main ruler composed of a protractor and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L13/00
CPCB43L13/001
Inventor 李国云
Owner 李国云
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