CN203818853U - Multifunctional mathematical teaching aid - Google Patents
Multifunctional mathematical teaching aid Download PDFInfo
- Publication number
- CN203818853U CN203818853U CN201420077690.6U CN201420077690U CN203818853U CN 203818853 U CN203818853 U CN 203818853U CN 201420077690 U CN201420077690 U CN 201420077690U CN 203818853 U CN203818853 U CN 203818853U
- Authority
- CN
- China
- Prior art keywords
- ruler body
- chalk
- teaching aid
- adjusting groove
- regulating tank
- 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.)
- Expired - Fee Related
Links
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a multifunctional mathematical teaching aid, which comprises a ruler body, wherein a positioning column which protrudes upwards is arranged at one end of the ruler body, and one end of the ruler body is provided with a through hole for suspension; an adjusting groove is axially formed in the ruler body, and chalk is vertically arranged in the adjusting groove; the diameter of the outer circle of the chalk is equal to the width of the adjusting groove, and the height of the positioning column is smaller than the length of the chalk. The chalk is clamped in the adjusting groove according to a certain distance, so that one end of the ruler body with the positioning column is fixed, accordingly, a circle drawing function can be realized; graduations are symmetrically arranged at both sides of the adjusting groove, so that a straight line drawing function is realized to facilitate a teacher to carry the teaching aid.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of Multifunctional math teaching aid.
Background technology
At present, the teaching aid using School Mathematics teacher has a lot, especially in how much sections of religion, both the ruler that had needed picture straight line, has the compasses that need picture circle, simultaneously, also will be with the teaching material of the use of attending class, like this, to teacher, attend class and carry teaching aid and brought a lot of inconvenience.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, proposes a kind of straight line of can drawing and can draw round Multifunctional math teaching aid again.
The technical problems to be solved in the utility model is achieved through the following technical solutions.The utility model is a kind of Multifunctional math teaching aid, be characterized in: comprise ruler body, in one end of ruler body, be provided with the locating dowel raising up, in one end of ruler body, have the through hole that hangs use, axis direction along ruler body on ruler body is provided with regulating tank, chalk is vertically installed in regulating tank, the identical setting of groove width of chalk outside diameter and regulating tank, the height of described locating dowel is less than the length of chalk.
In a kind of Multifunctional math teaching aid technical scheme of the utility model, further preferred technical scheme feature is: on the ruler body of regulating tank both sides, be arranged with graduation mark.
Compared with prior art, the utility model is clamped on chalk in regulating tank by certain distance, and one end of ruler body band locating dowel is fixed, and like this, just can realize the function of picture circle; Utilize the scale of the bilateral symmetry setting of regulating tank, can realize the function of picture straight line, facilitated teacher to carry teaching aid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of looking up of Fig. 1.
The specific embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present utility model, so that those skilled in the art understands the utility model further, and do not form the restriction of its power.
Embodiment 1, with reference to Fig. 1,2, a kind of Multifunctional math teaching aid, comprise ruler body 2, in one end of ruler body 2, be provided with the locating dowel 5 raising up, in one end of ruler body 2, have the through hole 1 that hangs use, axis direction along ruler body on ruler body 2 is provided with regulating tank 3, at the interior chalk 4 that is vertically provided with of regulating tank 3, the identical setting of groove width of chalk 4 outside diameters and regulating tank 3, the height of described locating dowel is less than the length of chalk.Teacher need to first regulate chalk apart from the distance of locating dowel according to required diameter of a circle, then locating dowel is fixed on blackboard when blackboard upper drawing circle in regulating tank, and chalk is rotated around locating dowel, the process of complete rear picture circle.
Embodiment 2, in the Multifunctional math teaching aid described in embodiment 1: be arranged with graduation mark on the ruler body of regulating tank 3 both sides, can, directly when ruler is used, also can get information about drawn diameter of a circle size like this.
Claims (2)
1. a Multifunctional math teaching aid, it is characterized in that: comprise ruler body, in one end of ruler body, be provided with the locating dowel raising up, in one end of ruler body, have the through hole that hangs use, axis direction along ruler body on ruler body is provided with regulating tank, chalk is vertically installed in regulating tank, the identical setting of groove width of chalk outside diameter and regulating tank, the height of described locating dowel is less than the length of chalk.
2. Multifunctional math teaching aid according to claim 1, is characterized in that: on the ruler body of regulating tank both sides, be arranged with graduation mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077690.6U CN203818853U (en) | 2014-02-24 | 2014-02-24 | Multifunctional mathematical teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077690.6U CN203818853U (en) | 2014-02-24 | 2014-02-24 | Multifunctional mathematical teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203818853U true CN203818853U (en) | 2014-09-10 |
Family
ID=51474390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077690.6U Expired - Fee Related CN203818853U (en) | 2014-02-24 | 2014-02-24 | Multifunctional mathematical teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203818853U (en) |
-
2014
- 2014-02-24 CN CN201420077690.6U patent/CN203818853U/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 |
Granted publication date: 20140910 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |