CN203780151U - Mathematics teaching aid for junior high school - Google Patents
Mathematics teaching aid for junior high school Download PDFInfo
- Publication number
- CN203780151U CN203780151U CN201420196855.1U CN201420196855U CN203780151U CN 203780151 U CN203780151 U CN 203780151U CN 201420196855 U CN201420196855 U CN 201420196855U CN 203780151 U CN203780151 U CN 203780151U
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- Prior art keywords
- ruler
- straight ruler
- teaching aid
- fixed
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Abstract
The utility model provides a mathematics teaching aid for a junior high school. The mathematics teaching aid comprises a first straight ruler, an L-shaped straight ruler and an angle gauge, wherein the first straight ruler and the angle gauge are hinged to the top end of the L-shaped straight ruler, an iron sheet is arranged in the first straight ruler, a chalk groove is formed in the bottom end of the first ruler, and a rotating screw is perpendicularly arranged on the side wall of the chalk groove; a first fixed point and a second fixed point are formed in the bottom edge of the L-shaped straight ruler, magnets are inlaid in the first fixed pointing and the second fixed point; when the first straight ruler is fixed in the first fixed point position, the first straight ruler and the L-shaped straight ruler form included angles of 30 degrees and 60 degrees; and when the first straight ruler is fixed in the second fixed point position, the first straight ruler and the L-shaped straight ruler form included angles of 45 degrees. According to the mathematics teaching aid, the first straight ruler, the L-shaped straight ruler and the angle gauge are hinged to one point to replace a straight ruler, a triangular rule, a pair of compass and an angle gauge, so that the design structure is optimized, the operation is simple, and a student can intuitively understand knowledge of angles; and during the use, teaching aids are not required to be changed repeatedly, and the teaching efficiency is improved.
Description
Technical field
The utility model relates to a kind of instrument of aided education, specifically a kind of Mathematics teaching aid for students in middle school.
Background technology
According to present teaching article, junior school student has just started this subject of contact geometry, the understanding of geometric knowledge is rested on to the primary stage substantially, therefore, at math teacher, just started in the process of student explain geometric knowledge, need on blackboard, make the figure of standard and demonstrate, deepened the directly perceived understanding of student to geometric knowledge, be convenient to student's quick start, thereby improve learning efficiency.At present, normally used teaching aid has ruler teaching aid, set square teaching aid, compass teaching aid, protractor teaching aid, and these teaching aids are all self-existent, to carrying process, caused inconvenience, and mapping time need to use a plurality of teaching aids, change back and forth very loaded down with trivial detailsly, also can waste valuable instructional blocks of time.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, and a kind of Mathematics teaching aid for students in middle school is provided.
The utility model solves the technical scheme that its technical problem adopts:
A kind of Mathematics teaching aid for students in middle school, comprise and be with graduated the first ruler, L-type ruler and protractor, described the first ruler, protractor are articulated with the top of L-type ruler, described the first ruler inside is provided with iron plate, the first ruler bottom is provided with ledge for chalk on blackboard, on ledge for chalk on blackboard sidewall, is vertically installed with rotary screw; On the base of described L-type ruler, be provided with the first fixed point and the second summit, described the first fixed point and the second fixed position are inlaid with respectively magnet; When the first ruler is fixed on the first fixed position of L-type ruler, the first ruler and L-type ruler form 30 degree, 60 degree angles, and when the first ruler is fixed on the second fixed position of L-type ruler, the first ruler and L-type ruler-shaped are in angle of 45 degrees.
The side bottom of described L-type ruler is provided with rubber blanket.
The side edge of described L-type ruler is provided with the catch of horizontal direction.
On described the first ruler, be provided with handle.
Compared with prior art, the beneficial effect producing is a kind of Mathematics teaching aid for students in middle school of the present utility model:
The utility model is reasonable in design, the first ruler, L-type ruler, protractor is articulated with to ruler teaching aid, set square teaching aid, compass teaching aid, the protractor teaching aid that a bit replaces use separately, has optimized project organization, easy to carry; The diverse location that is fixed on L-type ruler by the first ruler forms special angle, by the first ruler bottom, the use that ledge for chalk on blackboard is realized compasses being set, simple to operate, easy to use, is convenient to the knowledge that student intuitively understands angle; In use procedure, without changing back and forth teaching aid, improved the efficiency of giving lessons.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure, the 1, first ruler, 2, L-type ruler, 3, protractor, 4, iron plate, 5, ledge for chalk on blackboard, 6, rotary screw, 7, catch, the 8, first fixed point, the 9, second fixed point, 10, handle, 11, rubber blanket.
The specific embodiment
Below in conjunction with 1 pair of a kind of Mathematics teaching aid for students in middle school of the present utility model of accompanying drawing, be described in detail below.
As shown in Figure 1, a kind of Mathematics teaching aid for students in middle school of the present utility model, its structure comprises is with graduated the first ruler 1, L-type ruler 2 and protractor 3, described the first ruler 1, protractor 3 are articulated with the top of L-type ruler 2, described the first ruler 1 inside is provided with iron plate 4, the first ruler 1 bottom is provided with ledge for chalk on blackboard 5, is vertically installed with on rotary screw 6, the first rulers 1 and is also provided with handle 10 on ledge for chalk on blackboard 5 sidewalls; The side edge of described L-type ruler 2 is provided with the catch 7 of horizontal direction, the side bottom of L-type ruler 2 is provided with rubber blanket 11, on the base of L-type ruler 11, be provided with the first fixed point 8 and the second summit 9, described first fixed point the 8 and second fixed point 9 positions are inlaid with respectively magnet; When the first ruler 1 is fixed on the first fixed point 8 position of L-type ruler 2, the first ruler 1 and L-type ruler 2 form 30 degree, 60 degree angles, and when the first ruler 1 is fixed on the second fixed point 9 position of L-type ruler 2, the first ruler 1 and L-type ruler 2 shapes are in angle of 45 degrees.
While using the utility model, by the first ruler 1 being fixed on to the first fixed point 9 positions, the 8 and second summit of L-type ruler 2, draw special angle; Chalk is placed in ledge for chalk on blackboard 5, and by rotary screw 6, chalk is fixed, the rubber blanket 11 of L-type ruler 2 sides bottoms of take is initial point, with reference to the scale on L-type ruler 2 bases, draws as requested circle or circular arc; While needing the general angle of picture, binding capacity hornwork 3 and the first ruler 1, complete mapping.Easy to carry, simple to operate, in use procedure, without changing back and forth teaching aid, improve the efficiency of giving lessons, make student get more information about geometric knowledge.
Its processing and fabricating of a kind of Mathematics teaching aid for students in middle school of the present utility model is simple and convenient, processing and fabricating shown in by specification accompanying drawing.
Except the technical characterictic described in description, be the known technology of those skilled in the art.
Claims (4)
1. a Mathematics teaching aid for students in middle school, comprise and be with graduated the first ruler, L-type ruler and protractor, described the first ruler, protractor are articulated with the top of L-type ruler, it is characterized in that: described the first ruler inside is provided with iron plate, the first ruler bottom is provided with ledge for chalk on blackboard, on ledge for chalk on blackboard sidewall, is vertically installed with rotary screw; On the base of described L-type ruler, be provided with the first fixed point and the second summit, described the first fixed point and the second fixed position are inlaid with respectively magnet; When the first ruler is fixed on the first fixed position of L-type ruler, the first ruler and L-type ruler form 30 degree, 60 degree angles, and when the first ruler is fixed on the second fixed position of L-type ruler, the first ruler and L-type ruler-shaped are in angle of 45 degrees.
2. a kind of Mathematics teaching aid for students in middle school according to claim 1, is characterized in that: the side bottom of described L-type ruler is provided with rubber blanket.
3. a kind of Mathematics teaching aid for students in middle school according to claim 1, is characterized in that: the side edge of described L-type ruler is provided with the catch of horizontal direction.
4. a kind of Mathematics teaching aid for students in middle school according to claim 1, is characterized in that: on described the first ruler, be provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420196855.1U CN203780151U (en) | 2014-04-22 | 2014-04-22 | Mathematics teaching aid for junior high school |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420196855.1U CN203780151U (en) | 2014-04-22 | 2014-04-22 | Mathematics teaching aid for junior high school |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203780151U true CN203780151U (en) | 2014-08-20 |
Family
ID=51316369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420196855.1U Expired - Fee Related CN203780151U (en) | 2014-04-22 | 2014-04-22 | Mathematics teaching aid for junior high school |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203780151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953702A (en) * | 2017-11-19 | 2018-04-24 | 梁朝光 | Four-in-one learns stationery |
| CN111243380A (en) * | 2020-01-16 | 2020-06-05 | 遵义职业技术学院 | Teaching aid display device for mathematics education |
-
2014
- 2014-04-22 CN CN201420196855.1U patent/CN203780151U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953702A (en) * | 2017-11-19 | 2018-04-24 | 梁朝光 | Four-in-one learns stationery |
| CN111243380A (en) * | 2020-01-16 | 2020-06-05 | 遵义职业技术学院 | Teaching aid display device for mathematics education |
| CN111243380B (en) * | 2020-01-16 | 2021-09-28 | 遵义职业技术学院 | Teaching aid display device for mathematics education |
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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: 20140820 Termination date: 20150422 |
|
| EXPY | Termination of patent right or utility model |