CN202213388U - Mathematics teaching aid - Google Patents
Mathematics teaching aid Download PDFInfo
- Publication number
- CN202213388U CN202213388U CN2011202929847U CN201120292984U CN202213388U CN 202213388 U CN202213388 U CN 202213388U CN 2011202929847 U CN2011202929847 U CN 2011202929847U CN 201120292984 U CN201120292984 U CN 201120292984U CN 202213388 U CN202213388 U CN 202213388U
- Authority
- CN
- China
- Prior art keywords
- teaching aid
- rotating shaft
- mathematics teaching
- disk
- reference axis
- 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
Links
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a mathematics teaching aid, which comprises a coordinate axis (3). A rotary shaft (2) is arranged at an original point of the coordinate axis (3), a plurality of discs (1) are disposed on the rotary shaft (2), diameters of the discs are reduced gradually, special-shaped holes (6) are arranged at edges of the discs (1), pens are inserted in the special-shaped holes (6), and a ruler (4) is further arranged on the rotary shaft (2). The mathematics teaching aid in the structure has the advantage that the mathematics teaching aid is convenient in use, time and labor are saved, and workload of teachers is reduced.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of mathematics teaching aid.
Background technology
At present, the teacher often uses teaching aid on blackboard, to map in the mathematical education process; Especially in the geometric construction presentation process; Can use set square teaching aid, compasses teaching aid, protractor teaching aid, these teaching aids relatively disperse, and need during mapping to change back and forth; Waste valuable instructional blocks of time, and increased teacher's workload greatly.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, and is easy to use, time saving and energy saving, can reduce the mathematics teaching aid of teacher workload.
The technical scheme of the utility model is a kind of mathematics teaching aid; It comprises reference axis 3; It is characterized in that: the initial point place in said reference axis 3 is provided with rotating shaft 2; In said rotating shaft 2, be provided with some disks 1 that diameter reduces gradually, be equipped with the irregularly-shaped hole 6 that supplies penholder to go into, in said rotating shaft 2, also be provided with ruler 4 in the edge of said each disk 1.
The technical scheme of the utility model also has an end of contiguous maximum gauge disk 1 in said rotating shaft 2 to be provided with sucker 7, and the other end is provided with clamp nut 5.
The beneficial effect of the utility model is to be provided with rotating shaft 2 through the initial point place in said reference axis 3, in said rotating shaft 2, is provided with some disks 1 that diameter reduces gradually, is equipped with the irregularly-shaped hole 6 that supplies penholder to go in the edge of said each disk 1; During use; Penholder is gone into irregularly-shaped hole 6 and rotating circular disk 1, and circle or the circular arc of differing in size that can on blackboard, draw is used through the ruler 4 that is arranged in the rotating shaft 2 again; Straight line at any angle can draw; Realized easy to usely, time saving and energy saving, reduced the effect of teacher workload.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is the vertical view of the utility model among Fig. 1
Among Fig. 1,21, disk, 2, rotating shaft, 3, reference axis, 4, ruler, 5, nut, 6, irregularly-shaped hole, 7, sucker.
The specific embodiment
According to Fig. 1, shown in 2, the utility model relates to a kind of mathematics teaching aid, and it comprises a kind of mathematics teaching aid; It comprises reference axis 3, is provided with rotating shaft 2 at the initial point place of said reference axis 3, in said rotating shaft 2, is provided with some disks 1 that diameter reduces gradually; Edge at said each disk 1 is equipped with the irregularly-shaped hole 6 that supplies penholder to go into; In said rotating shaft 2, also be provided with ruler 4, an end of contiguous maximum gauge disk 1 is provided with sucker 7 in said rotating shaft 2, and the other end is provided with clamp nut 5; Initial point place through in said reference axis 3 is provided with rotating shaft 2, in said rotating shaft 2, is provided with some disks 1 that diameter reduces gradually, is equipped with the irregularly-shaped hole 6 that supplies penholder to go in the edge of said each disk 1; During use, penholder is gone into irregularly-shaped hole 6 and rotating circular disk 1, circle or the circular arc of differing in size can draw on blackboard; Be used through the ruler 4 that is arranged in the rotating shaft 2, the straight line at any angle that draws has been realized easy to use again; Time saving and energy saving, the effect of reduction teacher workload.
Claims (2)
1. mathematics teaching aid; It comprises reference axis (3); It is characterized in that: be provided with rotating shaft (2) at the initial point place of said reference axis (3); In said rotating shaft (2), be provided with some disks (1) that diameter reduces gradually, be equipped with the irregularly-shaped hole (6) that supplies penholder to go into, in said rotating shaft (2), also be provided with ruler (4) in the edge of said each disk (1).
2. mathematics teaching aid according to claim 1 is characterized in that: an end of going up contiguous maximum gauge disk (1) in said rotating shaft (2) is provided with sucker (7), and the other end is provided with clamp nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202929847U CN202213388U (en) | 2011-08-03 | 2011-08-03 | Mathematics teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202929847U CN202213388U (en) | 2011-08-03 | 2011-08-03 | Mathematics teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202213388U true CN202213388U (en) | 2012-05-09 |
Family
ID=46012657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202929847U Expired - Fee Related CN202213388U (en) | 2011-08-03 | 2011-08-03 | Mathematics teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202213388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097569A (en) * | 2017-06-20 | 2017-08-29 | 屈雷涛 | One kind teaching picture circle and oval apparatus |
-
2011
- 2011-08-03 CN CN2011202929847U patent/CN202213388U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097569A (en) * | 2017-06-20 | 2017-08-29 | 屈雷涛 | One kind teaching picture circle and oval apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20140803 |
|
| EXPY | Termination of patent right or utility model |