CN203032212U - Mathematical teaching ruler - Google Patents
Mathematical teaching ruler Download PDFInfo
- Publication number
- CN203032212U CN203032212U CN 201220749241 CN201220749241U CN203032212U CN 203032212 U CN203032212 U CN 203032212U CN 201220749241 CN201220749241 CN 201220749241 CN 201220749241 U CN201220749241 U CN 201220749241U CN 203032212 U CN203032212 U CN 203032212U
- Authority
- CN
- China
- Prior art keywords
- ruler body
- ruler
- protractor
- main
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a mathematical teaching ruler. The mathematical teaching ruler is composed of a main ruler body (1), a protractor (2) and an auxiliary ruler body (3), wherein the auxiliary ruler body (3) is arranged between two end points of the protractor (2), the main ruler body (1) is connected with the auxiliary ruler body (3) through a rotating shaft (4), the main ruler body (1) can rotate around the rotating shaft (4), scales are arranged on the main ruler body (1) and the auxiliary ruler body (3), straight lines of different lengths or line segments of different lengths can be drawn conveniently, right angles can also be drawn, and various angles can be drawn conveniently through the combination of the main ruler body (1) and the protractor (2). According to the mathematical teaching ruler, the protractor and a straight ruler are combined into a whole, teachers can use and bring the mathematical teaching ruler conveniently, angles can be drawn quickly and accurately by the aid of the design of the main ruler body and the auxiliary ruler body, the working difficulty of teachers can be reduced, and the teaching quality can be improved.
Description
Technical field
The utility model relates to a kind of mathematical education chi.
Background technology
The mathematics teacher usually needs educational aids such as use amount hornwork, ruler, set square when giving lessons, because this type of instrument all is independently individual, need exchange continually during use, has increased teacher's workload, and has carried inconvenience.The teacher is when drawing angle with protractor in addition, operates more loaded down with trivial detailsly, and accuracy is low.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of mathematical education chi is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of mathematical education chi is made of main scale 1, protractor 2, auxilliary chi 3, and auxilliary chi 3 is located between 2 two end points of protractor, and main scale 1 is connected with auxilliary chi 3 by rotating shaft 4, and main scale 1 can rotate around rotating shaft 4.Main scale 1 and auxilliary chi 3 are provided with scale, can conveniently draw straight line or the line segment of different length, also can draw the right angle, and main scale 1 and auxilliary chi 3 serve as set square; Various angles can be conveniently drawn in the combination of main scale 1 and protractor 2.
The beneficial effects of the utility model are: protractor and ruler are combined into one, and namely make things convenient for the teacher to use, and make things convenient for the teacher to carry again, and the design of main scale and auxilliary chi can be drawn the work difficulty that angle has alleviated the teacher rapidly and accurately, has improved quality of instruction.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Among the figure, 1 main scale, 2 protractors, 3 auxilliary chis, 4 rotating shafts.
The specific embodiment
As shown in Figure 1, a kind of mathematical education chi is made of main scale 1, protractor 2, auxilliary chi 3, and auxilliary chi 3 is located between 2 two end points of protractor, and main scale 1 is connected with auxilliary chi 3 by rotating shaft 4, and main scale 1 can rotate around rotating shaft 4.Main scale 1 and auxilliary chi 3 are provided with scale, can conveniently draw straight line or the line segment of different length, also can draw the right angle, and main scale 1 and auxilliary chi 3 serve as set square; Various angles can be conveniently drawn in the combination of main scale 1 and protractor 2.
Claims (1)
1. mathematical education chi, it is characterized in that be made of main scale (1), protractor (2), auxilliary chi (3), auxilliary chi (3) is located between (2) two end points of protractor, main scale (1) is connected with auxilliary chi (3) by rotating shaft (4), and main scale (1) can rotate around rotating shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749241 CN203032212U (en) | 2012-12-15 | 2012-12-15 | Mathematical teaching ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749241 CN203032212U (en) | 2012-12-15 | 2012-12-15 | Mathematical teaching ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203032212U true CN203032212U (en) | 2013-07-03 |
Family
ID=48684353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220749241 Expired - Fee Related CN203032212U (en) | 2012-12-15 | 2012-12-15 | Mathematical teaching ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203032212U (en) |
-
2012
- 2012-12-15 CN CN 201220749241 patent/CN203032212U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20131215 |