CN205238955U - Mathematics teaching device - Google Patents

Abstract

A kind of mathematics teaching appliance, comprises main ruler, 45 degree triangular ruler and 60 degree triangular ruler; One end of described main ruler is provided with a cylinder, and described cylinder is provided with suction cup; The other end of described main ruler is provided with hinge A , the hinge A connects the main ruler and the 60-degree triangular ruler together; the middle part of the main ruler is provided with a hinge B, and the hinge B connects the main ruler and the 45-degree triangular ruler together; a protractor is embedded on the 45-degree triangular ruler ; A corner of the 60-degree triangular ruler is provided with a pin; the pin connects the 60-degree triangular ruler and the chalk sleeve; one side of the main chi is provided with a 45-degree triangular ruler groove; the main chi, 45 Degree squares, 60 degree squares and protractors are engraved with concave scale marks. The utility model integrates a ruler, a protractor, a compasses and two kinds of triangular rulers, and is easy to carry and use.

Description

A teaching tool for mathematics

technical field

The utility model relates to a teaching tool, in particular to a mathematics teaching tool.

Background technique

In mathematics teaching, rulers, compasses, 45-degree triangles, 60-degree triangles and protractors are often used. These tools are an indispensable part of mathematics teaching; however, each tool is a scattered individual, It is not conducive to access and carrying. During class, the teacher often loses a certain teaching tool and the normal course cannot be carried out normally. This will greatly affect the teacher's teaching quality and teaching efficiency, and then affect the children's academic performance. ;Nowadays, good education is the key to every child's growth, especially in mathematics teaching; a new teaching tool that can flexibly combine various mathematics teaching tools will provide a good foundation for children's growth Make a significant contribution.

Utility model content

The purpose of this utility model is to provide a mathematics teaching tool to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A kind of mathematics teaching tool, comprises main ruler, 45 degree triangular ruler and 60 degree triangular ruler; One end of described main ruler is provided with a cylinder; Said cylinder is provided with suction cup; The other end of described main ruler is provided with hinge A , the hinge A connects the main ruler and the 60-degree triangular ruler together; the middle part of the main ruler is provided with a hinge B; the hinge B connects the main ruler and the 45-degree triangular ruler together; a protractor is embedded on the 45-degree triangular ruler ; One corner of the 60-degree square ruler 1 is provided with a pin; the pin connects the 60-degree square ruler and the chalk sleeve together.

As a further solution of the utility model: one side of the main ruler is provided with a 45-degree triangular ruler groove.

As a further solution of the utility model: the main ruler, the 45-degree triangle ruler, the 60-degree triangle ruler and the protractor are all engraved with concave scale marks.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model integrates a ruler, a protractor, a compass and two kinds of triangular rulers together, which is easy to carry and use; when not in use, the two triangular rulers and the main ruler can be combined together, and the chalk sleeve can be removed; Remove each pin, and take each triangle ruler you need.

Description of drawings

Figure 1 is a schematic diagram of the structure of the mathematics teaching tool.

Fig. 2 is a side view of the mathematics teaching tool.

Fig. 3 is a structural schematic diagram of the main ruler in the mathematics teaching tool.

Fig. 4 is a structural schematic diagram of a 60-degree triangle ruler in the mathematics teaching tool.

Fig. 5 is a structural schematic diagram of a 45-degree triangular ruler in the mathematics teaching tool.

In the figure: 1-60 degree triangle ruler, 2-main ruler, 3-hinge A, 4-protractor, 5-45 degree triangle ruler, 6-chalk sleeve, 7-suction cup, 8-hinge B, 9-pin, 10-45 degree triangular ruler groove, 11-cylinder.

detailed description

The technical solution of this patent will be described in further detail below in conjunction with specific embodiments.

Please refer to Fig. 1～5, a kind of mathematics teaching apparatus, comprises main ruler 2, 45 degree triangular ruler 5 and 60 degree triangular ruler 1; One end of described main ruler 2 is provided with a cylinder 11; There is a sucker 7, which is used as a foot of a compass; the other end of the main ruler 2 is provided with a hinge A3, and the hinge A3 connects the main ruler 2 and the 60-degree triangular ruler 1 together; the middle part of the main ruler 2 is provided with a Hinge B8 is arranged; Described hinge B8 connects main scale 2 and 45 degree triangular ruler 5 together; Embeds protractor 4 on described 45 degree triangular ruler 5; Described protractor 4 can be used for measuring the degree of any angle; Said 60 A pin 9 is provided at one angle of the square ruler 1, and the pin 9 connects the 60 degree square ruler 1 and the chalk sleeve 6 together.

The usage method of the present utility model: when drawing a circle, fix the sucker 7 at the center position of the drawn circle, separate the 60-degree triangle ruler 1, and draw the required circle on the blackboard with chalk; a 45-degree triangle is embedded in the protractor Chi, when not in use, can be screwed into main chi 2 side with 45 degree triangular ruler 5; One end of described 60 degree triangular ruler 1 is provided with chalk sleeve 6, and chalk sleeve 6 is fixed on 60 degree triangular ruler 1 by pin 9 Can be regarded as a pin of described 60 degree triangular ruler 1 of compasses, another pin of main chi 2 and the sucker 7 on it is regarded as compasses; It is because the suction cup 7 can be fixed easily without accidentally injuring the blackboard and personnel due to excessive force; the main chi 2, the triangular ruler and the protractor 4 are all engraved with concave scale marks, which can be used for measurement for a long time. Required standard figure templates can be engraved on the described 60 degree triangular ruler 1 as required, for making some standard figures.

The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above-mentioned implementation, and within the knowledge of those of ordinary skill in the art, it can also be made without departing from the purpose of this patent. Variations.

Claims (3)

1. a teaching apparatus for mathematics, comprises main scale, 45 degree set squares and 60 degree set squares; It is characterized in that, one end of described main scale is provided with a cylinder; Described cylinder is provided with sucker; The described main scale other end is provided with hinge A, and hinge A links together main scale and 60 degree set squares; Described main scale middle part is provided with hinge B; Described hinge B links together main scale and 45 degree set squares; Embedded quantity hornwork on described 45 degree set squares; One jiao of described 60 degree set squares is provided with pin; Described pin links together 60 degree set squares and bush of chalk.

2. teaching apparatus for mathematics according to claim 1, is characterized in that, a side of described main scale is provided with 45 degree set square grooves.

3. teaching apparatus for mathematics according to claim 1, is characterized in that, on described main scale, 45 degree set squares, 60 degree set squares and protractor, is all carved with spill graduation mark.