CN202230645U - Combination teaching aid for space pattern demonstrations of primary school mathematics - Google Patents
Combination teaching aid for space pattern demonstrations of primary school mathematics Download PDFInfo
- Publication number
- CN202230645U CN202230645U CN2011203910091U CN201120391009U CN202230645U CN 202230645 U CN202230645 U CN 202230645U CN 2011203910091 U CN2011203910091 U CN 2011203910091U CN 201120391009 U CN201120391009 U CN 201120391009U CN 202230645 U CN202230645 U CN 202230645U
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- China
- Prior art keywords
- hemisphere
- magnet group
- fixed magnet
- blind hole
- cone
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- Expired - Lifetime
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Abstract
A combination teaching aid for space pattern demonstrations of primary school mathematics is formed by connecting two cubes with the same size. A conical blind hole is arranged at the center of the outer side face of one cube, a cone is arranged in the conical blind hole and is attracted through a cone fixing magnet group, a first hemispherical groove for accommodating a first hemisphere is arranged on the inner side face of the cube, and the first hemisphere and the first hemispherical groove are attracted through a first hemisphere fixing magnet group. A horizontal cylindrical blind hole is arranged at the center of the outer side face of the other cube, a cylinder is arranged in the cylindrical blind hole and attracted through a cylinder fixing magnet group, a second hemispherical groove for accommodating a second hemisphere is arranged on the inner side face of the cube, and the second hemisphere and the second hemispherical groove are attracted through a second hemisphere fixing magnet group. A hemisphere combination magnet group is arranged on a jointing surface of the first hemisphere and the second hemisphere. The combination teaching has less components, is convenient to assemble and convenient to carry, and can visually demonstrate shapes of a cuboid, a cube, a cylinder, a cone and a sphere.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of primary school mathematics space diagram demonstration combined appliance for teaching.
Background technology
The vital role that teaching aid is brought into play in teaching; Particularly in primary grades; The operation of scientific and effective use learning aid, enthusiasm that can not only mobilizing students study excites student's intuition thinking in images; And can make the abstract mathematical knowledge visual pattern that becomes, be beneficial to the student and better understand and grasp.Existing primary school mathematics space diagram demonstration teaching aid, parts are too many, disperse very much, are not easy to carry, and assemble complicated pupil and participate in certain degree of difficulty, thereby influenced teaching and results of learning.
The utility model content
In order to overcome the defective that above-mentioned existing teaching aid exists; The purpose of the utility model provides a kind of primary school mathematics space diagram demonstration combined appliance for teaching, and its parts is few, and is easy to assembly; Be easy to carry, can demonstrate the shape of rectangular parallelepiped, square, cylinder, circular cone and spheroid intuitively.
The utility model solves the technical scheme that its technical matters adopted: this kind primary school mathematics space diagram demonstration combined appliance for teaching; It is characterized in that; Two squares identical size are formed by connecting; Lateral surface central authorities at a square are provided with conical blind hole; One cone places in this taper shape blind hole and through the adhesive of circular cone fixed magnet group, is provided with the first hemisphere face groove of ccontaining first hemisphere at the medial surface of this square, and first hemisphere and the first hemisphere face groove are through the first hemisphere fixed magnet group adhesive; Be provided with the horizontal cylindrical blind hole in another square lateral surface central authorities, a right cylinder places in this blind cylindrical hole and passes through the adhesive of cylinder fixed magnet group; Be provided with the second hemisphere face groove of ccontaining second hemisphere at the medial surface of this square, second hemisphere and the second hemisphere face groove are through the second hemisphere fixed magnet group adhesive; On the composition surface of first hemisphere and second hemisphere, be equipped with hemisphere and combine group of magnets.
The outer end of described right cylinder and cone is provided with handle.
The beneficial effect of the utility model is: this teaching aid can be demonstrated the shape of rectangular parallelepiped, square, cylinder, circular cone and spheroid intuitively; Fractionation and easy to assembly; Be to satisfy on the basis of above-mentioned a plurality of solid figures more significantly; Utilize the characteristics of each figure to form an organic whole, make bonded block few, be easy to carry.
Description of drawings
Below in conjunction with accompanying drawing and embodiment utility model is further specified.
Fig. 1 is the center section plan of the utility model;
Among the figure: 1 left square, 2 right squares, 11 cones, 12 first hemisphere; 13 circular cone fixed magnet groups (outward), 14 circular cone fixed magnet groups (interior), 15 first hemisphere fixed magnet groups (interior), 16 first hemisphere fixed magnet groups (outward); 17 hemisphere combine group of magnets (left side), 21 right cylinders, 22 second hemisphere, 23 cylinder fixed magnet groups (outward); 24 circular cone fixed magnet groups (interior), 25 second hemisphere fixed magnet groups (interior), 26 second hemisphere fixed magnet groups (outward), 27 hemisphere combine group of magnets (right side).
Embodiment
In Fig. 1, this kind primary school mathematics space diagram demonstration combined appliance for teaching is formed by connecting in the identical left square 1 of size, right square 2.
Lateral surface central authorities at left square 1 are provided with conical blind hole; One cone 11 places in this taper shape blind hole and passes through the adhesive of circular cone fixed magnet group; This circular cone fixed magnet group comprises the circular cone fixed magnet group (outward) that is arranged on the conical blind pore wall 13 and is arranged on the circular cone fixed magnet group (interior) 14 on cone 11 outside surfaces, realizes the fixing of cone 11 through the two adhesive.Be provided with the first hemisphere face groove of ccontaining first hemisphere 12 at the medial surface of left square 1, first hemisphere 12 and the first hemisphere face groove are through the first hemisphere fixed magnet group adhesive; This first hemisphere fixed magnet group comprises the first hemisphere fixed magnet group (interior) 15 that is arranged on the first hemisphere face groove walls and is arranged on the first hemisphere fixed magnet group (outward) 16 on first hemisphere 12, realizes fixing of first hemisphere 12 through the two adhesive.
Be provided with the horizontal cylindrical blind hole in right square 2 lateral surface central authorities, a right cylinder 21 places in this blind cylindrical hole and through the adhesive of cylinder fixed magnet group; This cylinder fixed magnet group comprises the cylinder fixed magnet group (outward) that is arranged on the blind cylindrical hole wall 23 and is arranged on the cylinder fixed magnet group (interior) 24 on right cylinder 21 outside surfaces, realizes the fixing of right cylinder 21 through the two adhesive.
Be provided with the second hemisphere face groove of ccontaining second hemisphere 22 at the medial surface of right square 2, second hemisphere 22 and the second hemisphere face groove are through the second hemisphere fixed magnet group adhesive;
This second hemisphere fixed magnet group comprises the second hemisphere fixed magnet group (interior) 25 that is arranged on the second hemisphere face groove walls and is arranged on the second hemisphere fixed magnet group (outward) 26 on second hemisphere 22, realizes fixing of second hemisphere 22 through the two adhesive.
On the composition surface of first hemisphere 12 and second hemisphere 22, be equipped with hemisphere and combine group of magnets.The hemisphere that this hemisphere combines group of magnets to comprise and is arranged on first hemisphere 12 combines group of magnets (left side) 17 and the hemisphere that is arranged on second hemisphere 22 to combine group of magnets (right side) 27; Realize the joint of first hemisphere 12 and second hemisphere 22 through the two adhesive; And then left and right sides square combined and form a rectangular parallelepiped, also be easy to carry.
The outer end of described right cylinder and cone is provided with handle, so that take out, first hemisphere 12 and second hemisphere 22 then take out it through pushing the hemisphere side.
The utility model can be demonstrated the shape of rectangular parallelepiped, square, cylinder, circular cone and spheroid intuitively.
Claims (2)
1. a primary school mathematics space diagram is demonstrated combined appliance for teaching; It is characterized in that; Two squares identical size are formed by connecting, and are provided with conical blind hole in the lateral surface central authorities of a square, and a cone places in this taper shape blind hole and through the adhesive of circular cone fixed magnet group; Be provided with the first hemisphere face groove of ccontaining first hemisphere at the medial surface of this square, first hemisphere and the first hemisphere face groove are through the first hemisphere fixed magnet group adhesive; Be provided with the horizontal cylindrical blind hole in another square lateral surface central authorities, a right cylinder places in this blind cylindrical hole and passes through the adhesive of cylinder fixed magnet group; Be provided with the second hemisphere face groove of ccontaining second hemisphere at the medial surface of this square, second hemisphere and the second hemisphere face groove are through the second hemisphere fixed magnet group adhesive; On the composition surface of first hemisphere and second hemisphere, be equipped with hemisphere and combine group of magnets.
2. primary school mathematics space diagram demonstration combined appliance for teaching according to claim 1 is characterized in that the outer end of described right cylinder and cone is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203910091U CN202230645U (en) | 2011-10-14 | 2011-10-14 | Combination teaching aid for space pattern demonstrations of primary school mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203910091U CN202230645U (en) | 2011-10-14 | 2011-10-14 | Combination teaching aid for space pattern demonstrations of primary school mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230645U true CN202230645U (en) | 2012-05-23 |
Family
ID=46081225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203910091U Expired - Lifetime CN202230645U (en) | 2011-10-14 | 2011-10-14 | Combination teaching aid for space pattern demonstrations of primary school mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324201A (en) * | 2011-10-14 | 2012-01-18 | 卢雪梅 | Spatial graph presentation combined teaching aid for primary school mathematics |
| CN103071871A (en) * | 2013-01-14 | 2013-05-01 | 中山市锐锋数控设备有限公司 | Molybdenum-wire guiding device of wire cutting machine tool |
-
2011
- 2011-10-14 CN CN2011203910091U patent/CN202230645U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324201A (en) * | 2011-10-14 | 2012-01-18 | 卢雪梅 | Spatial graph presentation combined teaching aid for primary school mathematics |
| CN102324201B (en) * | 2011-10-14 | 2013-03-27 | 卢雪梅 | Spatial graph presentation combined teaching aid for primary school mathematics |
| CN103071871A (en) * | 2013-01-14 | 2013-05-01 | 中山市锐锋数控设备有限公司 | Molybdenum-wire guiding device of wire cutting machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20130327 |
|
| RGAV | Abandon patent right to avoid regrant |