CN204596257U - A kind of mathematics sin cos functions instructional device - Google Patents
A kind of mathematics sin cos functions instructional device Download PDFInfo
- Publication number
- CN204596257U CN204596257U CN201520200624.8U CN201520200624U CN204596257U CN 204596257 U CN204596257 U CN 204596257U CN 201520200624 U CN201520200624 U CN 201520200624U CN 204596257 U CN204596257 U CN 204596257U
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- China
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- function template
- permanent magnet
- demonstration board
- connecting link
- template
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Abstract
A kind of mathematics sin cos functions instructional device, comprise demonstration board, function template, function template comprises at least one left function template and at least one right function template, left function template and the upper and lower two ends of right function template are all connected with the first permanent magnet, the centre of left function template and right function template is connected with the second permanent magnet, second permanent magnet cooperatively interacts with the 3rd permanent magnet being arranged on the demonstration board back side, 3rd permanent magnet is arranged on a contiguous block, contiguous block level and vertical direction are respectively arranged with through hole, horizontal brace rod and vertical connecting link is provided with in through hole, horizontal brace rod and vertical connecting link two ends are all provided with roller.The utility model only need promote contiguous block and the curvilinear translation of sine function can be demonstrated out, changes the plotted versus process in conventional teaching, is presented in student at the moment, strengthens the understanding of student's offset of sinusoidal function by clear for translation motion.
Description
Technical field
The utility model relates to a kind of mathematics sin cos functions instructional device, belongs to mathematical education teaching aid application.
Background technology
In mathematical education process, trigonometric function is that the utilization of the most ABC, particularly sine function of study is the most extensive.Sine function is defined as: all correspond to unique angle for any one real number x, that is in Circular measure, there is an angle determined to equal this real number, and this angle correspond to well-determined sine value sinx, there is well-determined value sinx corresponding with it for any one real number x like this, according to the function that this correspondence rule is set up, be expressed as y=sinx, be called sine function.But the learning difficulty of sine function is comparatively large, and the examination question of sine function is also emphasis topic type in examination.If can accurately image sine function figure is demonstrated, for solution relevant issues can have very great help.
Utility model content
The purpose of this utility model is to provide a kind of mathematics sin cos functions instructional device, by the utility model can be vivid sine function demonstrated see to student, thus improve efficiency of teaching.
The purpose of this utility model is achieved through the following channels:
A kind of mathematics sin cos functions instructional device, comprise demonstration board, described demonstration board lower end is connected with support column, described support column lower end is connected with back up pad, described instructional device also comprises function template, described function template comprises at least one left function template and at least one right function template, described left function template and the upper and lower two ends of right function template are all connected with the first permanent magnet, the centre of described left function template and right function template is connected with the second permanent magnet, described second permanent magnet cooperatively interacts with the 3rd permanent magnet being arranged on the demonstration board back side, described 3rd permanent magnet is arranged on a contiguous block, described contiguous block level and vertical direction are respectively arranged with through hole, horizontal brace rod and vertical connecting link is provided with in through hole, described horizontal brace rod and vertical connecting link two ends are all provided with roller, described demonstration board has portrayed coordinate system, the described demonstration board back side is provided with baffle plate, square accommodating groove is formed between described baffle plate and demonstration board, described accommodating groove and roller cooperatively interact, the upper and lower two ends of described horizontal brace rod are connected with L-type connecting link, described L-type connecting link is connected with roller.
The utility model beneficial effect:
The utility model only need promote contiguous block and the curvilinear translation of sine function can be demonstrated out, changes the plotted versus process in conventional teaching, is presented in student at the moment, strengthens the understanding of student's offset of sinusoidal function by clear for translation motion.Adopt the utility model to carry out learning or imparting knowledge to students, the cognition of user's offset of sinusoidal function itself can be deepened.By using the utility model to impart knowledge to students, student can be made more skilled in the middle of utilization; The accuracy of simultaneously also drawing for teachers provides Reliable guarantee, can cannot embody the problem of manual drawing course by solution computer graphics well, makes student's skilled method for drafting grasping sine function figure in practical operation.The utility model structure is simple, easy to operate, suitable popularization.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model Facad structure schematic diagram;
Fig. 2 is the utility model function template backsight structural representation;
Fig. 3 is the utility model demonstration board backsight structural representation;
Fig. 4 is the utility model contiguous block side-looking structural representation;
In figure, 1, demonstration board, 2, support column, 3, back up pad, 4, coordinate system, 5, function template, 6, left function template, 7, right function template, the 8, second permanent magnet, 9, the first permanent magnet, 10, baffle plate, 11, roller, 12, vertical connecting link, 13, horizontal brace rod, 14, contiguous block, 15, the 3rd permanent magnet, 16, L-type connecting link.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment:
As shown in Figures 1 to 4, a kind of mathematics sin cos functions instructional device, comprise demonstration board 1, described demonstration board lower end is connected with support column 2, described support column lower end is connected with back up pad 3, described instructional device also comprises function template 5, described function template comprises at least one left function template 6 and at least one right function template 7, described left function template and the upper and lower two ends of right function template are all connected with the first permanent magnet 9, the centre of described left function template and right function template is connected with the second permanent magnet 8, described second permanent magnet cooperatively interacts with the 3rd permanent magnet 15 being arranged on the demonstration board back side, described 3rd permanent magnet is arranged on a contiguous block 14, described contiguous block level and vertical direction are respectively arranged with through hole, horizontal brace rod 13 and vertical connecting link 12 is provided with in through hole, described horizontal brace rod and vertical connecting link two ends are all provided with roller 11.
As the further optimization of this programme, described demonstration board is portrayed coordinate system 4.
As the further optimization of this programme, the described demonstration board back side is provided with baffle plate 10, forms square accommodating groove between described baffle plate and demonstration board, and described accommodating groove and roller cooperatively interact.
As the further optimization of this programme, the upper and lower two ends of described horizontal brace rod are connected with L-type connecting link 16, and described L-type connecting link is connected with roller.Ensure that horizontal brace rod and vertical connecting link there will not be collision phenomenon in contiguous block by L-type connecting link.
Concrete using method:
As shown in Figures 1 to 4, absorption attended operation is carried out by the first permanent magnet in the upper end of left function template and right function template or lower end, then the pole polarity of the magnetic pole of the second permanent magnet and the 3rd permanent magnet is arranged on the contrary, so just can by mobile link block just can control function template to carry out moving the utility model using method simple, and visually sin cos functions can be demonstrated and see to student.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change can expected without creative work or replacement, all should be encompassed within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.
Claims (1)
1. a mathematics sin cos functions instructional device, comprise demonstration board, described demonstration board lower end is connected with support column, described support column lower end is connected with back up pad, it is characterized in that, described instructional device also comprises function template, described function template comprises at least one left function template and at least one right function template, described left function template and the upper and lower two ends of right function template are all connected with the first permanent magnet, the centre of described left function template and right function template is connected with the second permanent magnet, described second permanent magnet cooperatively interacts with the 3rd permanent magnet being arranged on the demonstration board back side, described 3rd permanent magnet is arranged on a contiguous block, described contiguous block level and vertical direction are respectively arranged with through hole, horizontal brace rod and vertical connecting link is provided with in through hole, described horizontal brace rod and vertical connecting link two ends are all provided with roller, described demonstration board has portrayed coordinate system, the described demonstration board back side is provided with baffle plate, square accommodating groove is formed between described baffle plate and demonstration board, described accommodating groove and roller cooperatively interact, the upper and lower two ends of described horizontal brace rod are connected with L-type connecting link, described L-type connecting link is connected with roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200624.8U CN204596257U (en) | 2015-04-07 | 2015-04-07 | A kind of mathematics sin cos functions instructional device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200624.8U CN204596257U (en) | 2015-04-07 | 2015-04-07 | A kind of mathematics sin cos functions instructional device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596257U true CN204596257U (en) | 2015-08-26 |
Family
ID=53932387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520200624.8U Expired - Fee Related CN204596257U (en) | 2015-04-07 | 2015-04-07 | A kind of mathematics sin cos functions instructional device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596257U (en) |
-
2015
- 2015-04-07 CN CN201520200624.8U patent/CN204596257U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160407 |