CN204406802U - A kind of instrument for teaching mathematics tool - Google Patents
A kind of instrument for teaching mathematics tool Download PDFInfo
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- CN204406802U CN204406802U CN201520062283.2U CN201520062283U CN204406802U CN 204406802 U CN204406802 U CN 204406802U CN 201520062283 U CN201520062283 U CN 201520062283U CN 204406802 U CN204406802 U CN 204406802U
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Abstract
The utility model relates to a kind of instrument for teaching mathematics tool, comprise demonstration board, demonstration circle, straight line, round dot, suspender, described demonstration board is magnetic sheet, described demonstration circle comprises circle, diameter, center of circle node, the circle centre position of described demonstration circle is provided with center of circle node, described center of circle node is fixed on circle by diameter, described circle, diameter, center of circle node is metal material, can be adsorbed on demonstration board, described straight line, round dot is metal material, can be adsorbed on demonstration board, described demonstration board top is provided with suspender, the beneficial effects of the utility model are, the utility model can be directly perceived, show point and circle visually, circle and circle, circle and line, and the relation of regular polygon and circle, and energy apparatus volume data determination each position relation, make the line item that student's profound understanding circle is relevant.
Description
Technical field
The utility model relates to mathematical education aid technical field, is specifically related to a kind of instrument for teaching mathematics tool.
Background technology
In mathematical education, teacher need say the relation of solution point and circle, circle and circle, circle and line and regular polygon and circle, during teacher explains, can only explain with word and language, be difficult to student is understood fast.
Chinese patent Authorization Notice No. is CN 202404797 U, authorized announcement date is that the utility model patent of on 08 29th, 2012 discloses a little and circle, circle and circle position relationship demonstration device, be made up of rectangular slab, tinned sheet iron, finer wire and round dot magnet, one deck tinned sheet iron is covered above described rectangular slab, be fixed with nail in the middle of the broadside of rectangular slab, between two nails, tension has a finer wire.On described finer wire, surface cover has sliding sleeve, and sliding sleeve and fixed mount are jointly connected to annulus and form roundlet and great circle respectively.The tinned sheet iron of described rectangular slab is also adsorbed with round dot magnet.
But above-mentioned demonstration device only can realize a little with circle position, position relationship before two circles, but the relation of the position relationship of the relation of the public circle of contact, line and circle, regular polygon and circle can not be described, teacher, when explaining the line item about circle, is difficult to understand with making students system.
Summary of the invention
For overcoming described deficiency, the purpose of this utility model is to provide a kind of instrument for teaching mathematics tool conveniently saying the relation of solution point and circle, line and circle, circle and circle and regular polygon and circle.
The utility model solves the technical scheme that its technical matters adopts: a kind of instrument for teaching mathematics tool, comprise demonstration board, demonstration circle, straight line, round dot, suspender, demonstration board is magnetic sheet, demonstration circle comprises circle, diameter, center of circle node, the circle centre position of demonstration circle is provided with center of circle node, center of circle node is fixed on circle by diameter, circle, diameter, center of circle node are metal material, can be adsorbed on demonstration board, straight line, round dot are metal material, can be adsorbed on demonstration board, demonstration board top is provided with suspender.
Further, described demonstration board is provided with X-axis, Y-axis, and X-axis, Y-axis composition X-Y coordinate system, is convenient to demonstration location, can say the relation of solution point and circle, line and circle, circle and circle and regular polygon and circle by data simultaneously.
Further, described demonstration circle is at least provided with three, and described demonstration diameter of a circle is different.
Further, described demonstration circle has at least a special demonstration round, and special demonstration circle is provided with the node of decile, is convenient to demonstrate regular polygon and determines intersection point with during round relation.
Further, the node on described special demonstration circle is at least provided with three.
Further, described straight line is no less than ten, has one group of length, radical at least and special to demonstrate circle corresponding in straight line, is formed a set of, is convenient to accurately to demonstrate the relation of regular polygon and circle.
The utility model has following beneficial effect: the utility model can show the relation a little with round, round and round, round and line and regular polygon and circle intuitively, visually, and energy apparatus volume data determination each position relation, make the line item that student's profound understanding circle is relevant.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1.
Fig. 2 is the schematic diagram of embodiment 2.
Fig. 3 is the schematic diagram of demonstration circle.
Fig. 4 is the schematic diagram of special demonstration circle.
In figure, 1 demonstration board, 2 Y-axis, 3 X-axis, 4 special demonstration circles, 5 straight lines, 6 demonstration circles, 7 suspenders, 8 round dots, 9 center of circle nodes, 10 diameters, 11 circles, 12 nodes.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.
Embodiment 1
A kind of instrument for teaching mathematics tool as shown in Fig. 1,3,4, comprise demonstration board 1, demonstration circle 6, straight line 10, round dot 8, suspender 7, demonstration board 1 is magnetic sheet, demonstration circle 6 comprises circle 11, diameter 10, center of circle node 9, the circle centre position of demonstration circle 6 is provided with center of circle node 9, center of circle node 9 is fixed on circle 11 by diameter 10, circle 11, diameter 10, center of circle node 9 are metal material, can be adsorbed on demonstration board 1, straight line 5, round dot 8 are metal material, can be adsorbed on demonstration board 1, demonstration board 1 top is provided with suspender 7.
Further, described demonstration board 1 is provided with X-axis 3, Y-axis 2, and X-axis 3, Y-axis 2 form X-Y coordinate system, is convenient to demonstration location, can say the relation of solution point and circle, line and circle, circle and circle and regular polygon and circle by data simultaneously.
Further, described demonstration circle 6 is at least provided with three, and the diameter 10 of described demonstration circle 6 is different.
Further, described demonstration circle 6 has a special demonstration round 4 at least, and special demonstration circle 4 is provided with the node 12 of decile, is convenient to demonstrate regular polygon and determines intersection point with during round relation.
Further, the node 12 on described special demonstration circle 4 is at least provided with three.
Further, described straight line 5 is no less than ten, has one group of length, radical at least and special to demonstrate circle 4 corresponding in straight line 5, is formed a set of, is convenient to accurately to demonstrate the relation of regular polygon and circle.
When explaining the position of circle with circle, two different demonstration circles 4 are adsorbed on demonstration board 1, by mobile demonstration circle 6 show round from, tangent, crossing, three different demonstrations round 4 are adsorbed on demonstration board 1, the related content of the public circle of contact can be explained.
Embodiment 2
A kind of instrument for teaching mathematics tool as shown in Figure 2,3, 4, comprise demonstration board 1, demonstration circle 6, straight line 10, round dot 8, suspender 7, demonstration board 1 is magnetic sheet, demonstration circle 6 comprises circle 11, diameter 10, center of circle node 9, the circle centre position of demonstration circle 6 is provided with center of circle node 9, center of circle node 9 is fixed on circle 11 by diameter 10, circle 11, diameter 10, center of circle node 9 are metal material, can be adsorbed on demonstration board 1, straight line 5, round dot 8 are metal material, can be adsorbed on demonstration board 1, demonstration board 1 top is provided with suspender 7.
Further, described demonstration board 1 is provided with X-axis 3, Y-axis 2, and X-axis 3, Y-axis 2 form X-Y coordinate system, is convenient to demonstration location, can say the relation of solution point and circle, line and circle, circle and circle and regular polygon and circle by data simultaneously.
Further, described demonstration circle 6 is at least provided with three, and the diameter 10 of described demonstration circle 6 is different.
Further, described demonstration circle 6 has a special demonstration round 4 at least, and special demonstration circle 4 is provided with the node 12 of decile, is convenient to demonstrate regular polygon and determines intersection point with during round relation.
Further, the node 12 on described special demonstration circle 4 is at least provided with three.
Further, described straight line 5 is no less than ten, has one group of length, radical at least and special to demonstrate circle 4 corresponding in straight line 5, is formed a set of, is convenient to accurately to demonstrate the relation of regular polygon and circle.
When explaining regular polygon with round relation, teacher first can say that any one regular polygon has incircle circumscribed circle, such as explain positive triangle, then select special demonstration circle 4 and the straight line 10 corresponding with the positive triangle length of side, straight line 10 two ends are placed on trisection node 12 place of special demonstration circle 4, form positive triangle, and then select corresponding demonstration circle 6 as the incircle of this positive triangle.
The utility model is not limited to described embodiment, and anyone should learn the structure change made under enlightenment of the present utility model, and every have identical or close technical scheme with the utility model, all falls within protection domain of the present utility model.
Technology, shape, structure part that the utility model is not described in detail are known technology.
Claims (6)
1. an instrument for teaching mathematics tool, comprise demonstration board, demonstration circle, straight line, round dot, suspender, described demonstration board is magnetic sheet, described demonstration circle comprises circle, diameter, center of circle node, the circle centre position of described demonstration circle is provided with center of circle node, described center of circle node is fixed on circle by diameter, described circle, diameter, center of circle node are metal material, can be adsorbed on demonstration board, described straight line, round dot are metal material, can be adsorbed on demonstration board, described demonstration board top is provided with suspender.
2. a kind of instrument for teaching mathematics tool according to claim 1, is characterized in that: described demonstration board is provided with X-axis, Y-axis, X-axis, Y-axis composition X-Y coordinate system.
3. a kind of instrument for teaching mathematics tool according to claim 1, is characterized in that: described demonstration circle is at least provided with three, and described demonstration diameter of a circle is different.
4. a kind of instrument for teaching mathematics tool according to claim 1, is characterized in that: described demonstration circle has a special demonstration circle at least, and special demonstration circle is provided with the node of decile.
5. a kind of instrument for teaching mathematics tool according to claim 4, is characterized in that: the node on described special demonstration circle is at least provided with three.
6. a kind of instrument for teaching mathematics tool according to claim 1,4, is characterized in that: described straight line is no less than ten, have at least in straight line one group of length, radical with special demonstrate circle corresponding, formed a set of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520062283.2U CN204406802U (en) | 2015-01-29 | 2015-01-29 | A kind of instrument for teaching mathematics tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520062283.2U CN204406802U (en) | 2015-01-29 | 2015-01-29 | A kind of instrument for teaching mathematics tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204406802U true CN204406802U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520062283.2U Expired - Fee Related CN204406802U (en) | 2015-01-29 | 2015-01-29 | A kind of instrument for teaching mathematics tool |
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| Country | Link |
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| CN (1) | CN204406802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373462A (en) * | 2016-12-07 | 2017-02-01 | 泸县奇峰镇学校 | Circle teaching aid for mathematics teaching |
-
2015
- 2015-01-29 CN CN201520062283.2U patent/CN204406802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373462A (en) * | 2016-12-07 | 2017-02-01 | 泸县奇峰镇学校 | Circle teaching aid for mathematics 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: 20160129 |
|
| EXPY | Termination of patent right or utility model |