CN203172292U - Novel mathematics teaching aid - Google Patents
Novel mathematics teaching aid Download PDFInfo
- Publication number
- CN203172292U CN203172292U CN 201320222401 CN201320222401U CN203172292U CN 203172292 U CN203172292 U CN 203172292U CN 201320222401 CN201320222401 CN 201320222401 CN 201320222401 U CN201320222401 U CN 201320222401U CN 203172292 U CN203172292 U CN 203172292U
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- China
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- circular
- hole
- circular port
- triangle hole
- isosceles
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Abstract
The utility model discloses a novel mathematics teaching aid which comprises an upper half circular ruler plate and a lower half circular ruler body which are articulated together, wherein the upper half circular ruler plate and the lower half circular ruler body can form a complete circle after closed; an isosceles right triangle hole, regular triangle holes, a rectangle hole, a right triangle hole and isosceles trapezoid holes are formed in the upper half circular ruler plate; the rectangle hole is formed in a position close to the left end of the upper half circular ruler plate; the regular triangle holes are formed on the right side of the rectangle hole; the isosceles right triangle hole is formed on the right sides of the regular triangle holes; the right triangle hole is formed on the right side of the isosceles right triangle hole; the isosceles trapezoid holes are formed on the right side of the right triangle hole; and scales are arranged on the upper half circular ruler plate. The novel mathematics teaching aid is simple in structure and convenient to use, and is suitable for popularization and use.
Description
Technical field
The utility model relates to a kind of teaching apparatus, particularly a kind of novel mathematics teaching aid.
Background technology
In daily teaching, the mathematics teaching aid of often using has set square, ruler, protractor etc.; When last mathematics class, need prepare above-mentioned several mathematics teaching aid simultaneously, not only bother, be not easy to carry, to some geometric figures, as trapezoidal, right angled triangle, ellipse etc., utilize above-mentioned several mathematics teaching aid to be difficult to fast and accurately diagram plots be come out simultaneously, thereby influenced carrying out smoothly of teaching, also influenced teaching efficiency.
Summary of the invention
Problem to be solved in the utility model provides a kind of novel mathematics teaching aid, and this novel mathematics teaching aid can be drawn multiple figure, the convenient use.
For addressing the above problem, the technical scheme that the utility model adopts is:
A kind of novel mathematics teaching aid comprises hinged first circular chi plate and lower semi-circular chi body, can form a complete circle after first circular chi plate and the lower semi-circular chi body closure; Described first circular chi plate is provided with isosceles right triangle hole, equilateral triangle hole, rectangular opening, right angled triangle hole, isosceles trapezoid hole, described rectangular opening be arranged on first circular chi plate keep left the end the position on, the equilateral triangle hole is arranged on the right side of rectangular opening, the isosceles right triangle hole is arranged on the right side in equilateral triangle hole, the right angled triangle hole is arranged on the right side in isosceles right triangle hole, the isosceles trapezoid hole is arranged on the right side in right angled triangle hole, and first circular chi plate is provided with scale; Described lower semi-circular chi body is provided with first circular port, slotted eye, second circular port, the 3rd circular port and square hole, square hole be arranged on lower semi-circular chi body keep left the end the position on, slotted eye, second circular port are arranged on the right side of square hole, first circular port is arranged on the right side of second circular port, the 3rd circular port is arranged on the right side of first circular port, the equal diameters of second circular port and the 3rd circular port, first circular port is less than the diameter of second circular port;
As further improvement:
Described lower semi-circular chi body is provided with down chi plate handle, and following chi plate handle is arranged on the circular arc place of lower semi-circular chi body.
During use, the utility model is placed on the blackboard, both can make multiple figure easily, can form a complete circle after first circular chi plate and the lower semi-circular chi body closure, conveniently make complete great circle, the utility model is simple in structure, easy to use, be fit to promote the use of.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
The structural representation of a kind of novel mathematics teaching aid of accompanying drawing 1 the utility model embodiment;
Accompanying drawing 2 is the vertical view of accompanying drawing 1.
Among the figure:
First circular chi plate of 1-; The last chi plate of 2-handle; 3-lower semi-circular chi body; Chi plate handle under the 4-; The 5-scale; 6-first circular port; The 7-slotted eye; 8-second circular port; 9-the 3rd circular port; 10-isosceles right triangle hole; 11-equilateral triangle hole; The 12-rectangular opening; 13-right angled triangle hole; 14-isosceles trapezoid hole; The 15-square hole; 16-lower semi-circular chi body connecting ring; The 17-turning cylinder; First circular chi plate connecting ring of 18 –.
The specific embodiment
Embodiment, shown in Fig. 1 and accompanying drawing 2, a kind of novel mathematics teaching aid comprises hinged first circular chi plate 1 and lower semi-circular chi body 3, can form a complete circle after first circular chi plate 1 and lower semi-circular chi body 3 closures; Described first circular chi plate 1 is provided with isosceles right triangle hole 10, equilateral triangle hole 11, rectangular opening 12, right angled triangle hole 13, isosceles trapezoid hole 14, described rectangular opening 12 be arranged on first circular chi plate 1 keep left the end the position on, equilateral triangle hole 11 is arranged on the right side of rectangular opening 12, isosceles right triangle hole 10 is arranged on the right side in equilateral triangle hole 11, right angled triangle hole 13 is arranged on the right side in isosceles right triangle hole 10, isosceles trapezoid hole 14 is arranged on the right side in right angled triangle hole 13, and first circular chi plate 1 is provided with scale 5; Described lower semi-circular chi body 3 is provided with first circular port 6, slotted eye 7, second circular port 8, the 3rd circular port 9 and square hole 15, square hole 15 be arranged on lower semi-circular chi body 3 keep left the end the position on, slotted eye 7, second circular port 8 are arranged on the right side of square hole 15, first circular port 6 is arranged on the right side of second circular port 8, the 3rd circular port 9 is arranged on the right side of first circular port 6, the equal diameters of second circular port 8 and the 3rd circular port 9, first circular port 6 is less than the diameter of second circular port 8; Described lower semi-circular chi body 3 is provided with down chi plate handle 4, and following chi plate handle 4 is arranged on the circular arc place of lower semi-circular chi body 3; The radius of second circular port 8 and the 3rd circular port 9 is 20 millimeters.
During use, the utility model is placed on the blackboard, both can make multiple figure easily, can form a complete circle after first circular chi plate 1 and lower semi-circular chi body 3 closures, conveniently make complete great circle, the utility model is simple in structure, easy to use, be fit to promote the use of.
Claims (2)
1. novel mathematics teaching aid, comprise hinged first circular chi plate (1) and lower semi-circular chi body (3), it is characterized in that: described first circular chi plate (1) is provided with isosceles right triangle hole (10), equilateral triangle hole (11), rectangular opening (12), right angled triangle hole (13), isosceles trapezoid hole (14), described rectangular opening (12) be arranged on first circular chi plate (1) keep left the end the position on, equilateral triangle hole (11) is arranged on the right side of rectangular opening (12), isosceles right triangle hole (10) is arranged on the right side of equilateral triangle hole (11), right angled triangle hole (13) is arranged on the right side of isosceles right triangle hole (10), isosceles trapezoid hole (14) is arranged on the right side of right angled triangle hole (13), and first circular chi plate (1) is provided with scale (5); Described lower semi-circular chi body (3) is provided with first circular port (6), slotted eye (7), second circular port (8), the 3rd circular port (9) and square hole (15), square hole (15) be arranged on lower semi-circular chi body (3) keep left the end the position on, slotted eye (7), second circular port (8) is arranged on the right side of square hole (15), first circular port (6) is arranged on the right side of second circular port (8), the 3rd circular port (9) is arranged on the right side of first circular port (6), the equal diameters of second circular port (8) and the 3rd circular port (9), first circular port (6) is less than the diameter of second circular port (8).
2. a kind of novel mathematics teaching aid as claimed in claim 1, it is characterized in that: described lower semi-circular chi body (3) is provided with down chi plate handle (4), and following chi plate handle (4) is arranged on the circular arc place of lower semi-circular chi body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320222401 CN203172292U (en) | 2013-04-27 | 2013-04-27 | Novel mathematics teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320222401 CN203172292U (en) | 2013-04-27 | 2013-04-27 | Novel mathematics teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203172292U true CN203172292U (en) | 2013-09-04 |
Family
ID=49069039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320222401 Expired - Fee Related CN203172292U (en) | 2013-04-27 | 2013-04-27 | Novel mathematics teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203172292U (en) |
-
2013
- 2013-04-27 CN CN 201320222401 patent/CN203172292U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140427 |