CN102991210A - Folding ruler - Google Patents
Folding ruler Download PDFInfo
- Publication number
- CN102991210A CN102991210A CN 201110264512 CN201110264512A CN102991210A CN 102991210 A CN102991210 A CN 102991210A CN 201110264512 CN201110264512 CN 201110264512 CN 201110264512 A CN201110264512 A CN 201110264512A CN 102991210 A CN102991210 A CN 102991210A
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- CN
- China
- Prior art keywords
- folding ruler
- ruler
- folding
- teacher
- students
- 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.)
- Pending
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Abstract
The invention provides a folding ruler which is formed by serially connecting a plurality of ruler bodies through rivets and mainly used for teaching. When the folding ruler is used, the length of the folding ruler can be adjusted according to using needs, and then a teacher can utilize the folding ruler to perform measurement calculation and plotting on the blackboard. Besides, by changing folding modes of the folding ruler, the teacher can make a variety of geometric shapes to perform explanation for students. Therefore, the folding ruler has the advantages of performing calculation and geometric shape transformation, and facilitating improvement on understanding of the students.
Description
Technical field
The present invention relates to a kind of folding ruler, specifically a kind of folding ruler for teaching.
Background technology
School teacher can calculate and the mark geometric figure at blackboard through ruler commonly used when giving students give lessons, because the chi body of common ruler is a single stretched, and during use, can not be with the geometric figure conversion, the student listens to the teacher and can not understand intuitively.
Summary of the invention
The invention provides a kind of folding ruler, have and to calculate and pattern-changeable, can promote the characteristics that the student sharpens understanding fast.
The present invention includes the chi body of folding ruler, the technical scheme that adopts is: described folding ruler is linked to each other to be connected in series by rivet by several piece chi body and is integrated.
Beneficial effect of the present invention is: mainly be the Foldable ruler that uses as teaching, during use, can be according to after using required length to regulate, in blackboard measuring and calculating with mark on a map, simultaneously, also can be by the variation of folding mode, amalgamation is that multiple geometric figure is explained the student, have calculation and transformation geometry figure, favourable student improves the characteristics of understanding.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Accompanying drawing is structural representation of the present invention.
The specific embodiment
Shown in the accompanying drawing embodiment: folding ruler is linked to each other to be connected in series by rivet 2 by several piece chi body 1 and is integrated.
Claims (1)
1. folding ruler comprises it is characterized in that the chi body (1) of folding ruler: described folding ruler is integrated by rivet (2) serial connection that links to each other by several piece chi body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110264512 CN102991210A (en) | 2011-09-08 | 2011-09-08 | Folding ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110264512 CN102991210A (en) | 2011-09-08 | 2011-09-08 | Folding ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102991210A true CN102991210A (en) | 2013-03-27 |
Family
ID=47920533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110264512 Pending CN102991210A (en) | 2011-09-08 | 2011-09-08 | Folding ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102991210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201418A (en) * | 2017-08-21 | 2020-05-26 | 沃尔夫克拉夫特公司 | Folding ruler accessory |
| CN112572029A (en) * | 2019-09-30 | 2021-03-30 | 田中毅彦 | Portable folding form ruler |
-
2011
- 2011-09-08 CN CN 201110264512 patent/CN102991210A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201418A (en) * | 2017-08-21 | 2020-05-26 | 沃尔夫克拉夫特公司 | Folding ruler accessory |
| CN112572029A (en) * | 2019-09-30 | 2021-03-30 | 田中毅彦 | Portable folding form ruler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |