CN204398669U - A kind of mathematics teaching aid - Google Patents
A kind of mathematics teaching aid Download PDFInfo
- Publication number
- CN204398669U CN204398669U CN201420809917.1U CN201420809917U CN204398669U CN 204398669 U CN204398669 U CN 204398669U CN 201420809917 U CN201420809917 U CN 201420809917U CN 204398669 U CN204398669 U CN 204398669U
- Authority
- CN
- China
- Prior art keywords
- cuboid
- cuboid block
- teaching aid
- block
- mathematics teaching
- 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 kind of mathematics teaching aid, comprise compasses, compass leg forms by two cuboid blocks are hinged, chi is connected outside cuboid block, chi is marked with scale, one cuboid block bottom is provided with rotating sucker type compass fulcrum, another cuboid block bottom is provided with chalk sleeve, inside one cuboid block, mobilizable rectangular body rod is installed, the groove placing bar is provided with inside another cuboid block, bar and two cuboid blocks form isosceles right triangle, two cuboid blocks are respectively equipped with projection and the buckle of banding two cuboid block.The function of compasses, ruler, set square is combined on a teaching aid by the utility model, uses simple, easy to carry.
Description
Technical field
The utility model relates to a kind of teaching aid, is applied particularly in mathematical education.
Technical background
Geometric construction is a very important skill set requirements in mathematical education, in mathematical education and relevant Mathematics Research, have very general application.Use appropriate drawing tool to carry out geometric construction, student can be helped better to understand geometrical principle, method of geometry and geometry content.But, in field research, math teacher often needs class hour carry the multiple teaching aids such as compasses, ruler, set square, not only require great effort when carrying, and in use also need often to change use, very inconvenient.
Summary of the invention
For solving the problem, the utility model provides a kind of multi-functional mathematic(al) construction teaching aid, and its structure is simple, easy to use, easily can complete multiple mapping task.
The utility model is by the following technical solutions:
A kind of mathematics teaching aid, overall structure shows as compasses, and its special character is: the leg of compasses is formed by axle is hinged by two cuboid blocks, and connect chi outside cuboid block, chi is marked with scale; One cuboid block bottom is provided with rotating sucker type compass fulcrum, and another cuboid block bottom is provided with chalk sleeve; Inside one cuboid block, rectangular body rod is installed, is linked by articulate between this bar with cuboid block, inside another cuboid block, be provided with the groove placing bar; Described two cuboid blocks are respectively equipped with projection and the buckle of banding two cuboid block.
Mathematics teaching aid of the present utility model, two cuboid blocks is respectively equipped with the shifting block and chute of stirring compasses fulcrum and chalk sleeve.
Mathematics teaching aid of the present utility model, described bar comprises two sections and is socketed to form, and interface is provided with retainer plate.
Mathematics teaching aid of the present utility model, the outer edge of chi is comparatively thin with cuboid block junction, and thickness is 0.2-0.5cm.
Mathematics teaching aid of the present utility model, the length that bar is stretched out equals the hypotenuse length forming isosceles right triangle with two cuboid blocks.
The beneficial effects of the utility model are: the function of compasses, ruler, set square be combined on a teaching aid, easy to carry, simple to operate, and sucker type compass fulcrum solves common compasses shortcoming not easily fixing on blackboard.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing 1 is the structural representation of the utility model mathematics teaching aid.
In figure, 1 compasses, 2 cuboid blocks, 3 chis, 4 scales, 5 compasses fulcrums, 6 chalk sleeves, 7 chutes, 8 shifting blocks, 9 bars, 10 axles, 11 retainer plates, 12 grooves, 13 projections, 14 buckles, 15 hinges.
Detailed description of the invention
Mathematics teaching aid shown in accompanying drawing 1, comprises compasses 1, and the leg of compasses 1 is formed by axle 10 is hinged by two cuboid blocks 2, connects chi 3 outside cuboid block 2; One cuboid block 2 bottom is provided with rotating sucker type compass fulcrum 5, and another cuboid block 2 bottom is provided with chalk sleeve 6; Inside one cuboid block 2, rectangular body rod 9 is installed, inside another cuboid block 2, is provided with the groove 12 placing bar 9; Described two cuboid blocks 2 are respectively equipped with projection 13 and the buckle 14 of banding two cuboid block 2, buckle 14 can be buckled on projection 13 when compass leg closes.
Compasses fulcrum 5 adopts sucked type, can easily fulcrum be fixed on blackboard at picture bowlder, two cuboid blocks 2 are respectively equipped with the shifting block 8 stirring compasses fulcrum 5 and chalk sleeve 6 and chute 7, can upwards stir shifting block 8 along chute 7 not drawing bowlder, compasses fulcrum 5 and chalk sleeve 6 are stashed.
The outer edge of chi 3 is comparatively thin with cuboid block 2 junction, and thickness is 0.2-0.5cm, is more convenient for picture straight line, and chi 3 is marked with scale 4, can draw the straight line of random length in range.
Bar 9 comprises two sections and is socketed to form, and interface is provided with retainer plate 11, and by hinge 15 active link between bar 9 and cuboid block 2, the length that bar 9 is stretched out equals the hypotenuse length forming isosceles right triangle with two cuboid blocks 2.Stretched out by bar 9, upper end is inserted bottom groove 12, and namely the utility model becomes first-class waist right angle triangle, can draw right angled triangle.
Claims (5)
1. a mathematics teaching aid, comprises compasses (1), it is characterized in that: the leg of compasses (1) is formed by axle (10) is hinged by two cuboid blocks (2), and cuboid block (2) outside connects chi (3), and chi (3) is marked with scale (4); One cuboid block (2) bottom is provided with rotating sucker type compass fulcrum (5), and another cuboid block (2) bottom is provided with chalk sleeve (6); One cuboid block (2) inner side is provided with rectangular body rod (9), and by hinge (15) active link between this bar (9) and cuboid block (2), another cuboid block (2) inner side is provided with the groove (12) placing bar (9); Described two cuboid blocks (2) are respectively equipped with projection (13) and the buckle (14) of banding two cuboid block (2).
2. mathematics teaching aid according to claim 1, is characterized in that: two cuboid blocks (2) are respectively equipped with the shifting block (8) stirring compasses fulcrum (5) and chalk sleeve (6) and chute (7).
3. mathematics teaching aid according to claim 1 and 2, is characterized in that: described bar (9) comprises two sections and is socketed to form, and interface is provided with retainer plate (11).
4. mathematics teaching aid according to claim 1 and 2, is characterized in that: the outer edge of chi (3) is comparatively thin with cuboid block (2) junction, and thickness is 0.2-0.5cm.
5. mathematics teaching aid according to claim 1 and 2, is characterized in that: the length that bar (9) is stretched out equals the hypotenuse length forming isosceles right triangle with two cuboid blocks (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420809917.1U CN204398669U (en) | 2014-12-20 | 2014-12-20 | A kind of mathematics teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420809917.1U CN204398669U (en) | 2014-12-20 | 2014-12-20 | A kind of mathematics teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204398669U true CN204398669U (en) | 2015-06-17 |
Family
ID=53422560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420809917.1U Expired - Fee Related CN204398669U (en) | 2014-12-20 | 2014-12-20 | A kind of mathematics teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204398669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034652A (en) * | 2015-06-24 | 2015-11-11 | 苏州市职业大学 | Multifunctional ruler for teaching |
-
2014
- 2014-12-20 CN CN201420809917.1U patent/CN204398669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034652A (en) * | 2015-06-24 | 2015-11-11 | 苏州市职业大学 | Multifunctional ruler for teaching |
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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: 20150617 Termination date: 20151220 |
|
| EXPY | Termination of patent right or utility model |