CN201102416Y - Combined educational compasses triangle - Google Patents
Combined educational compasses triangle Download PDFInfo
- Publication number
- CN201102416Y CN201102416Y CNU2007200288279U CN200720028827U CN201102416Y CN 201102416 Y CN201102416 Y CN 201102416Y CN U2007200288279 U CNU2007200288279 U CN U2007200288279U CN 200720028827 U CN200720028827 U CN 200720028827U CN 201102416 Y CN201102416 Y CN 201102416Y
- Authority
- CN
- China
- Prior art keywords
- teaching
- compass
- set square
- square
- rotary arm
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a combined type teaching compass-set-square which is characterized in that one end of a rotary arm and one end of the inline side of the set square are respectively provided with through holes with the same size; the rotary arm is arranged above the incline side of the set square and is articulated with the set square by screws and butterfly bolts; the other end of the rotary arm is provided with a chalk clamping device. The design of the combined type teaching compass-set-square ensures that the teacher can achieve drawing with ruler and compass conveniently only by one teaching tool during the teaching process, which effectively reduces the complexity and replacing frequency of a plurality of teaching tools and improves the teaching quality and efficiency.
Description
1, technical field
The utility model relates to a kind of teaching aid, specifically a kind of combined teaching method Combination of compass and trangle.
2, background technology
At present; most of math teachers are when giving lessons; often can use ruler and do the teaching of on blackboard, drawing of the principle of figure; usually teacher can prepare a set square and compasses at least; like this teacher on blackboard, do in the process of figure can be frequent in addition frequent replacing hand in set square and compasses; be figure to finish the chi rail, influence quality of instruction again, bring very big inconvenience to the academics and students but frequent like this replacing promptly delays instructional blocks of time.
3, summary of the invention
Technology technical assignment of the present utility model is to overcome above-mentioned shortcoming, and a kind of combined teaching method Combination of compass and trangle is provided.
The technical solution of the utility model realizes in the following manner, this combined teaching method Combination of compass and trangle, one end of cursor has the identical through hole of size with an end of set square hypotenuse, cursor is arranged on the top of set square hypotenuse plate and hinged by screw and butterfly bolt and set square, and the other end of cursor is provided with the chalk clamping device.
The utility model has the advantages that: the combined type design of this combined teaching method Combination of compass and trangle makes teacher, and only just can finish ruler easily with a teaching aid is figure in teaching process, effectively reduced and used the numerous and diverse of multiple teaching aid and change frequency, improved teacher's quality of instruction and classroom efficiency.
4, description of drawings
Accompanying drawing 1 is the structural representation of this combined teaching method Combination of compass and trangle.
Mark in the accompanying drawing 1 is represented respectively;
5, the specific embodiment
Below in conjunction with accompanying drawing combined teaching method Combination of compass and trangle of the present utility model is done following detailed description the in detail.
As shown in Figure 1, combined teaching method Combination of compass and trangle of the present utility model, it is characterized in that an end of cursor 1 and an end of set square 2 hypotenuses have the identical through hole of size, cursor 1 is arranged on the top of set square 2 hypotenuse plates and hinged by screw 3 and butterfly bolt 4 and set square 2, and the other end of cursor 1 is provided with chalk clamping device 5.
Claims (1)
1, combined teaching method Combination of compass and trangle, it is characterized in that an end of cursor and an end of set square hypotenuse have the identical through hole of size, cursor is arranged on the top of set square hypotenuse plate and hinged by screw and butterfly bolt and set square, and the other end of cursor is provided with the chalk clamping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200288279U CN201102416Y (en) | 2007-10-08 | 2007-10-08 | Combined educational compasses triangle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200288279U CN201102416Y (en) | 2007-10-08 | 2007-10-08 | Combined educational compasses triangle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201102416Y true CN201102416Y (en) | 2008-08-20 |
Family
ID=39949436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200288279U Expired - Fee Related CN201102416Y (en) | 2007-10-08 | 2007-10-08 | Combined educational compasses triangle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201102416Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175765A (en) * | 2014-08-29 | 2014-12-03 | 张亦卫 | Combination ruler |
-
2007
- 2007-10-08 CN CNU2007200288279U patent/CN201102416Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175765A (en) * | 2014-08-29 | 2014-12-03 | 张亦卫 | Combination ruler |
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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: 20080820 Termination date: 20091109 |