CN201955960U - Ellipse and hyperbola teaching demonstration board - Google Patents
Ellipse and hyperbola teaching demonstration board Download PDFInfo
- Publication number
- CN201955960U CN201955960U CN2011200248371U CN201120024837U CN201955960U CN 201955960 U CN201955960 U CN 201955960U CN 2011200248371 U CN2011200248371 U CN 2011200248371U CN 201120024837 U CN201120024837 U CN 201120024837U CN 201955960 U CN201955960 U CN 201955960U
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- CN
- China
- Prior art keywords
- ellipse
- hyperbola
- plate body
- long line
- fixed orifice
- 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.)
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Abstract
The utility model provides an ellipse and hyperbola teaching demonstration board which comprises a board body, wherein coordinate axes are arranged on the board body, and a plurality of fixing holes are arranged on the board body along one coordinate axis; in addition, a long line with fixed plugs at the two ends is also arranged, and the fixed plugs are matched with the fixing holes. The ellipse and hyperbola teaching demonstration board has simple structure, is flexible and easy to carry, and can visually demonstrate the corresponding characteristics of the ellipse and the hyperbola.
Description
Technical field
The utility model relates to a kind of teaching aid, especially a kind of ellipse and hyp teaching demonstrating board of being used for.
Background technology
In the prior art, teacher the teaching the time, transmit education informations by means of blackboard, but blackboard all is to be fixed on the wall mostly, teacher is when demonstration ellipse and hyp forming process, and a people can't finish, and needs the student to assist to finish, like this because teachers and students' health blocks blackboard, cause presentation process loaded down with trivial details, it is directly perceived to lack teaching, thereby has reduced efficiency of teaching, influence quality of instruction, this is the weak point that prior art exists.
Summary of the invention
The purpose of this utility model is exactly at the existing in prior technology deficiency, and a kind of technical scheme that is used for oval and hyp teaching demonstrating board is provided, the demonstration board of this programme, simple in structure, flexible and changeable, be easy to carry about with one, can visual in image demonstration go out oval and hyp corresponding characteristics.
This programme is realized by following technical measures: a kind of ellipse and hyp teaching demonstrating board of being used for, the characteristics of this programme are: comprise plate body, reference axis is arranged on plate body, plate body along a reference axis is provided with a plurality of fixed orifices, in addition, also have two ends to have long line, described locking-type plug and the fixed orifice coupling of locking-type plug.Described fixed orifice is even numbers, and described fixed orifice is about the former point symmetry of coordinate axis.
The beneficial effect of this programme can be learnt according to the narration to such scheme, owing to have in this scheme coordinate axis arranged on the plate body, along an axis a plurality of fixed orifices are arranged on the plate body, and described fixed orifice is about the former point symmetry of coordinate axis, and described per two can be used as oval or hyp two focuses about the centrosymmetric fixed orifice of true origin; Also have two ends to have the long line of locking-type plug, during use, two locking-type plugs of long line can be inserted into respectively in two fixed orifices,, in the time of obsolete, locking-type plug can be pulled up, be convenient for carrying by long line drawing ellipse or hyperbolic curve.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure, 1 is plate body, and 2 is reference axis, and 3 is fixed orifice, and 4 are long line, and 5 is locking-type plug.
Embodiment
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by an embodiment.
By accompanying drawing as can be seen, this programme is used for oval and hyp teaching demonstrating board, comprise plate body 1, reference axis 2 is arranged on plate body 1, plate body 1 along a reference axis is provided with a plurality of fixed orifices 3, in addition, also have two ends to have the long line 4 of locking-type plug 5, described locking-type plug 5 mates with fixed orifice 3.Described fixed orifice 3 is even numbers, and described fixed orifice 3 is about the former point symmetry of coordinate axis.During use, draw when oval, two locking-type plugs 5 of long line 4 are inserted two about in the centrosymmetric fixed orifice 3 of coordinate axis initial point,, strain long line 4, the mobile nib ellipse that just can draw with nib as two focuses of ellipse; When drawing hyperbolic curve, two locking-type plugs 5 of long line 4 are inserted two about in the centrosymmetric fixed orifice 3 of coordinate axis initial point, as hyp two focuses, on long line 4, choose a point of fixity, this point can not be the mid point of long line 4, then long line is oppositely twisted, nib is put into the side of two line intersections near point of fixity, move up and down nib, just can obtain hyp one, just obtain another curve with identical way then, in the process of mobile nib, the point of fixity on the long line is constant, but the change in location on plate body, choose different point of fixity on long line, then the difference to the distance of two focuses is just inequality on the hyperbolic curve, so just can obtain different hyperbolic curves.
Claims (2)
1. one kind is used for oval and hyp teaching demonstrating board, it is characterized in that: comprise plate body, reference axis is arranged on plate body, plate body along a reference axis is provided with a plurality of fixed orifices, in addition, also have two ends to have long line, described locking-type plug and the fixed orifice coupling of locking-type plug.
2. ellipse and the hyp teaching demonstrating board of being used for according to claim 1, it is characterized in that: described fixed orifice is even numbers, and described fixed orifice is about the former point symmetry of coordinate axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200248371U CN201955960U (en) | 2011-01-26 | 2011-01-26 | Ellipse and hyperbola teaching demonstration board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200248371U CN201955960U (en) | 2011-01-26 | 2011-01-26 | Ellipse and hyperbola teaching demonstration board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955960U true CN201955960U (en) | 2011-08-31 |
Family
ID=44500064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200248371U Expired - Fee Related CN201955960U (en) | 2011-01-26 | 2011-01-26 | Ellipse and hyperbola teaching demonstration board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201955960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424484A (en) * | 2017-09-12 | 2017-12-01 | 赵英良 | A kind of high school mathematicses plane geometry learns demonstration device |
-
2011
- 2011-01-26 CN CN2011200248371U patent/CN201955960U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424484A (en) * | 2017-09-12 | 2017-12-01 | 赵英良 | A kind of high school mathematicses plane geometry learns demonstration device |
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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: 20110831 Termination date: 20130126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |