CN203503206U - Geometry volume demonstration teaching tool - Google Patents
Geometry volume demonstration teaching tool Download PDFInfo
- Publication number
- CN203503206U CN203503206U CN201320663800.2U CN201320663800U CN203503206U CN 203503206 U CN203503206 U CN 203503206U CN 201320663800 U CN201320663800 U CN 201320663800U CN 203503206 U CN203503206 U CN 203503206U
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- Prior art keywords
- geometry
- hole
- teaching
- solid
- volume
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- Expired - Lifetime
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- 239000007787 solid Substances 0.000 claims description 30
- 239000004576 sand Substances 0.000 abstract description 9
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Abstract
A geometry volume demonstration teaching tool comprises a box body (1) and a plurality of geometry bodies (2) embedded in the box body (1); the geometry body (2) is provided with a through hole (3) connected with a cavity; compared with the prior art, the geometry body is provided with the through hole connected with the cavity; when volume differences of different geometry bodies are presented in teaching, firstly the cavity of one geometry body is filled by thin sand through the through hole, then the sand is poured into the cavity of another geometry body through the through hole, so the volume difference of the geometry bodies can be directly presented; a learner not only stay in calculation stage, but also can directly observe or personally operate so as to experience the volume difference of different geometry bodies; the teaching tool is good for teaching demonstration and learning, and teaching effect is good.
Description
Technical field
The utility model relates to a kind of geometric volume teaching demonstration apparatus.
Background technology
At present, when student is imparted knowledge to students to geometric volume, teacher is for the volume difference between different solids, prepare different solids, but when the volume difference of demonstrating between solid, all only rest on the calculating on oral or formula, cannot make to experience intuitively, therefore cause poor.
Utility model content
The utility model provides the volume difference between a kind of can ocular demonstration different solids, the good geometric volume teaching demonstration of teaching efficiency apparatus for above problem.
The utility model overcomes the above problems technical scheme used: a kind of geometric volume teaching demonstration apparatus with following structure is provided, and it comprises that box body and several are entrenched in the solid in box body, and described solid is provided with the through hole communicating with inner chamber.
Adopt after above structure, compared with prior art, the utility model is because solid is provided with the through hole communicating with inner chamber, in the time of will demonstrating different solid volume difference in teaching, only need first the inner chamber of a solid to be filled to fine sand by through hole, by through hole, be poured in the inner chamber of another solid more subsequently, now can demonstrate intuitively the volume difference of solid, make learner not only rest on calculation stages, and can observe more intuitively or personally operate and realize the difference of different solid volumes, be more conducive to teaching demonstration and study, teaching efficiency is better.Therefore the utlity model has the volume difference between can the different solids of ocular demonstration, the good feature of teaching efficiency.
As improvement, described solid comprises polyhedron and spheroid, and described through hole is arranged on a polyhedral face, after the variation of the shape of solid, make instructor can demonstrate the more volume change of solid, be convenient to learner's understanding, can further improve teaching efficiency.
As further improvement, the face that described polyhedron is provided with through hole is connected with polyhedron is removable, when pouring out fine sand, directly this face is taken apart, can pour into down subsequently in another solid fast, also be convenient to fine sand and pour out fast and completely, therefore the instructor's that is more convenient for quick demonstration simultaneously.
As preferably, the described removable clamping that is connected to.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model geometric volume teaching demonstration apparatus.
As shown in the figure: 1, box body, 2, solid, 3, through hole.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
A kind of geometric volume teaching demonstration apparatus as shown in Figure 1, it comprises that box body 1 and several solids 2 that are entrenched in box body 1 (also comprise other parts certainly, but owing to not relating to the inventive point of the invention, therefore do not repeat them here), box body 1 is generally cell-shell, and described solid 2 is provided with the through hole 3 communicating with inner chamber.
Described solid 2 comprises polyhedron and spheroid (conventionally also comprising spherical crown and segment), and described through hole 3 is arranged on a polyhedral face.
The face that described polyhedron is provided with through hole 3 is connected with polyhedron is removable.
The described removable clamping (also can be snapping or grafting etc.) that is connected to.
During use, from box body 1, take out the solid 2 that needs demonstration, first fine sand is poured in a solid 2 until fill subsequently, then the fine sand of this being filled in fine sand solid 2 is poured in another solid 2 that needs reduced volume variation, if what now first fill is polyhedral solid 2, falling when husky, after can be first will one side pulling down, fall again fine sand, and if the solid of spheroid 2 directly falls husky.
Above example is only the novel preferred embodiment of this reality, and the utility model is not limited only to above embodiment and has also allowed other structural change, allly in the utility model rights to independence claimed range, changes, and all belongs to the utility model protection domain.
Claims (4)
1. a geometric volume teaching demonstration apparatus, it comprises that box body (1) and several are entrenched in the solid (2) in box body (1), is characterized in that: described solid (2) is provided with the through hole (3) communicating with inner chamber.
2. geometric volume teaching demonstration apparatus according to claim 1, is characterized in that: described solid (2) comprises polyhedron and spheroid, and described through hole (3) is arranged on a polyhedral face.
3. geometric volume teaching demonstration apparatus according to claim 2, is characterized in that: the face that described polyhedron is provided with through hole (3) is connected with polyhedron is removable.
4. geometric volume teaching demonstration apparatus according to claim 3, is characterized in that: the described removable clamping that is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663800.2U CN203503206U (en) | 2013-10-17 | 2013-10-17 | Geometry volume demonstration teaching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663800.2U CN203503206U (en) | 2013-10-17 | 2013-10-17 | Geometry volume demonstration teaching tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203503206U true CN203503206U (en) | 2014-03-26 |
Family
ID=50334166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320663800.2U Expired - Lifetime CN203503206U (en) | 2013-10-17 | 2013-10-17 | Geometry volume demonstration teaching tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203503206U (en) |
-
2013
- 2013-10-17 CN CN201320663800.2U patent/CN203503206U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |