CN203825884U - Demonstrator for studying moving point of right-angle triangle - Google Patents
Demonstrator for studying moving point of right-angle triangle Download PDFInfo
- Publication number
- CN203825884U CN203825884U CN201420233453.4U CN201420233453U CN203825884U CN 203825884 U CN203825884 U CN 203825884U CN 201420233453 U CN201420233453 U CN 201420233453U CN 203825884 U CN203825884 U CN 203825884U
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- China
- Prior art keywords
- angle triangle
- demonstration
- slideway
- panel
- moving point
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Abstract
The utility model relates to a demonstrator for studying a moving point of a right-angle triangle, comprising a demonstrating panel on which four slideways which are connected through end-to-end connection are positioned and the adjacent slideways are perpendicular to each other; a moving rod is positioned on the demonstrating panel between two adjacent sideways and the length of the moving rod is equivalent to that of one of the slideways; an inserting hole is positioned in the center of the moving rod for inserting a whiteboard marker or a chalk; two sliding blocks are positioned on two ends of the moving rod; and the sliding blocks are positioned in the slideways; one side of each of the slideways at the two ends of the moving rod is provided with a graduated scale. Compared with the prior art, the demonstrator for studying the moving point of the right-angle triangle is reasonable in design, simple in structure, easy in operation, good in reliability and direct in demonstrating, and enables the students to initiatively explore, easily find rules and makes question simple and understandable.
Description
Technical field
The utility model relates to a kind of teaching instrument and equipment field, particularly a kind of demonstration device of studying the moving point of right-angle triangle problem.
Background technology
In existing instruments used for education, there is the demonstration device aspect physics and mathematics, these general structures are simple, be easy to realize, simultaneously, aspect mathematics, for the different contents of courses, include different models and demonstration device, but the character at research right-angle triangle is convenient, does not also occur corresponding demonstration device.
Summary of the invention
Technical problem to be solved in the utility model is for the deficiencies in the prior art, provides a kind of reasonable in design, the demonstration device of the moving point of research right-angle triangle problem.
Technical problem to be solved in the utility model is to realize by following technical scheme, the utility model is a kind of demonstration device of studying the moving point of right-angle triangle problem, be characterized in, comprise demonstration panel, demonstration panel is provided with the slideway that four head and the tail join successively, adjacent slideway vertically arranges, wherein the demonstration panel between two adjacent slideways is provided with and a carriage release lever that slideway is isometric wherein, the center of carriage release lever is provided with the jack of inserting white board marker or chalk, the two ends of carriage release lever are provided with slide block, slide block is contained in slideway, slideway one side at carriage release lever two ends is provided with rule.
Technical problem to be solved in the utility model can also further realize by following technical scheme, in the demonstration device of the moving point of above-described research right-angle triangle problem: be equipped with outward the vertical base of placing of demonstration panel at described demonstration panel.
Technical problem to be solved in the utility model can also further realize by following technical scheme, in the demonstration device of the moving point of above-described research right-angle triangle problem: the installation of slide track that described four head and the tail join is successively square slideway.
Technical problem to be solved in the utility model can also further realize by following technical scheme, in the demonstration device of the moving point of above-described research right-angle triangle problem: the axis of described jack with demonstrate that panel is vertical to be arranged.
Compared with prior art, the utility model is reasonable in design, simple in structure, easy to operate, and reliability is strong, and demonstration effect is directly perceived, strengthens learning interest, makes student independently to carry out inquiry activity, is easy to find rule, makes problem become clear and easy to understand.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present utility model, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
Embodiment 1, with reference to Fig. 1, a kind of demonstration device of studying the moving point of right-angle triangle problem, comprise demonstration panel 1, demonstration panel 1 is provided with the slideway 2 that four head and the tail join successively, adjacent slideway 2 vertically arranges, wherein the demonstration panel 1 between two adjacent slideways 2 is provided with and a carriage release lever 3 that slideway 2 is isometric wherein, the center of carriage release lever 3 is provided with the jack 4 of inserting white board marker or chalk, the two ends of carriage release lever 3 are provided with slide block 6, slide block 6 is contained in slideway 2, and slideway 2 one sides at carriage release lever 3 two ends are provided with rule 5.
Embodiment 2, in the demonstration device of the moving point of the research right-angle triangle problem described in embodiment 1: described demonstration panel 1 outside, be equipped with will the 1 vertical placement of demonstration panel base 7.
Embodiment 3, in the demonstration device of the moving point of the research right-angle triangle problem described in embodiment 1: the slideway 2 that described four head and the tail join is successively set to square slideway.
Embodiment 4, in the demonstration device of the moving point of the research right-angle triangle problem described in embodiment 1: the axis of described jack 4 with demonstrate that panel is vertical to be arranged.
This device can help to inquire into the problem of following three aspects: the first, explore actual relative movement behind a right-angle side distance of glide of right-angle triangle and its base between variation relation; The second, hypotenuse center line equals half the application of character of hypotenuse, finds the movement locus of hypotenuse mid point, asks girth or the area of surrounded figure; The 3rd, explore the problem of the area maximum of formed right-angle triangle.One-piece construction is simple, easy for operation, good stability, and reliability is strong, and demonstration effect is directly perceived, makes problem become clear and easy to understand, strengthens learning interest, is easier to student and can independently carries out inquiry activity, finds rule.
Claims (4)
1. study the demonstration device that right-angle triangle moves some problem for one kind, it is characterized in that: comprise demonstration panel, demonstration panel is provided with the slideway that four head and the tail join successively, adjacent slideway vertically arranges, wherein the demonstration panel between two adjacent slideways is provided with and a carriage release lever that slideway is isometric wherein, and the center of carriage release lever is provided with the jack of inserting white board marker or chalk, and the two ends of carriage release lever are provided with slide block, slide block is contained in slideway, and slideway one side at carriage release lever two ends is provided with rule.
2. the demonstration device of the moving point of research right-angle triangle according to claim 1 problem, is characterized in that: at described demonstration panel, be equipped with outward the vertical base of placing of demonstration panel.
3. the demonstration device of the moving point of research right-angle triangle according to claim 1 problem, is characterized in that: the installation of slide track that described four head and the tail join is successively square slideway.
4. the demonstration device of the moving point of research right-angle triangle according to claim 1 problem, is characterized in that: the axis of described jack with demonstrate that panel is vertical to be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233453.4U CN203825884U (en) | 2014-05-08 | 2014-05-08 | Demonstrator for studying moving point of right-angle triangle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233453.4U CN203825884U (en) | 2014-05-08 | 2014-05-08 | Demonstrator for studying moving point of right-angle triangle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825884U true CN203825884U (en) | 2014-09-10 |
Family
ID=51481358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420233453.4U Expired - Fee Related CN203825884U (en) | 2014-05-08 | 2014-05-08 | Demonstrator for studying moving point of right-angle triangle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203825884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034643A (en) * | 2015-07-14 | 2015-11-11 | 东莞市天信金属制品有限公司 | Card box |
-
2014
- 2014-05-08 CN CN201420233453.4U patent/CN203825884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034643A (en) * | 2015-07-14 | 2015-11-11 | 东莞市天信金属制品有限公司 | Card box |
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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: 20140910 Termination date: 20150508 |
|
| EXPY | Termination of patent right or utility model |