CN202352171U - Primary mathematics rectangular area demonstrating device - Google Patents
Primary mathematics rectangular area demonstrating device Download PDFInfo
- Publication number
- CN202352171U CN202352171U CN2011205128836U CN201120512883U CN202352171U CN 202352171 U CN202352171 U CN 202352171U CN 2011205128836 U CN2011205128836 U CN 2011205128836U CN 201120512883 U CN201120512883 U CN 201120512883U CN 202352171 U CN202352171 U CN 202352171U
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- China
- Prior art keywords
- rectangular area
- panel
- demonstrating device
- primary
- primary mathematics
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Abstract
The utility model discloses a primary mathematics rectangular area demonstrating device, belonging to mathematics teaching demonstrating articles. The primary mathematics rectangular area demonstrating device is realized like this: the upper edge and the left side edge of a panel are respectively provided with a scale line for indicating length; the panel is of a double-layer structure; a magnet is arranged between the two layers of the panel; a storage box is arranged under the panel; the storage box is used for placing a plurality of square iron sheets; the area of each square iron sheet is one square centimeter; an adjustable support leg is arranged under the storage box; and a fixed bolt is arranged on the adjustable support leg. The primary mathematics rectangular area demonstrating device has the characteristics of simple structure and convenience for manufacture. Owing to the arrangement of the adjustable support leg, the length of the primary mathematics rectangular area demonstrating device can be adjusted optionally, so that the whole class, especially the students in back rows, are convenient to watch the primary mathematics rectangular area demonstrating device.
Description
Technical field:
The utility model belongs to mathematical education demonstration articles for use, particularly primary school mathematics rectangular area apparatus for demonstrating.
Background technology:
At present, in primary school math teaching, the maths demonstration teaching aid is less, and such as running into rectangular area when teaching, teacher's figure that need on blackboard, draw comes the teaching demonstration content; Because students ' age is little, simple writing is unfavorable for students'understanding, so results of learning are relatively poor.If adopt the teaching demonstration teaching aid can not only solve the problem in the teaching, can also be used to the enthusiasm of mobilizing students study, thereby development student's intelligence is improved the quality of teaching comprehensively.
The utility model content:
The utility model overcomes the deficiency of the problems referred to above, and a kind of primary school mathematics rectangular area apparatus for demonstrating is provided, and this apparatus for demonstrating is simple in structure, and is easy to make.The utility model be achieved in that the upper edge of panel and left side along on be respectively equipped with the scale mark that indicates length, said panel is a double-decker, between panel two-layer, is provided with magnet; Below said panel, be provided with case, be placed with several square iron plates in the case, the area of each square iron plate is one square centimeter, below said case, is provided with adjustable supporting leg, and adjustable supporting leg is provided with set bolt.
Primary school mathematics rectangular area apparatus for demonstrating, simple in structure, easy to make.During concrete the use, when rectangular area of explanation, it is 4 centimetres such as length; Wide 3 centimetres, at this moment can on panel, put area and be one square centimeter square iron plate, through the number of the square iron plates of number; Obtain rectangular area, very directly perceived, be convenient to understand; The setting of adjustable supporting leg can be regulated this height of devices arbitrarily, the convenient full student of class, and especially back row student's watches.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model; 1, panel 2, scale mark 3, magnet 4, square iron plate 5, case 6, adjustable supporting leg 7, set bolt
Embodiment:
In conjunction with accompanying drawing 1; Embodiment does, primary school mathematics rectangular area apparatus for demonstrating, be achieved in that the upper edge of panel 1 and left side along on be respectively equipped with the scale mark 2 that indicates length; Said panel 1 is a double-decker, between panel 1 two-layer, is provided with magnet 3; Below said panel 1, be provided with case 5; Be placed with several square iron plates 4 in the case 5; The area of each square iron plate 4 is one square centimeter, below said case 5, is provided with adjustable supporting leg 6, and adjustable supporting leg 6 is provided with set bolt 7.
Primary school mathematics rectangular area apparatus for demonstrating, simple in structure, easy to make.During concrete the use, when rectangular area of explanation, it is 4 centimetres such as length; Wide 3 centimetres, at this moment can on panel, put area and be one square centimeter square iron plate, through the number of the square iron plates of number; Obtain rectangular area, very directly perceived, be convenient to understand; The setting of adjustable supporting leg can be regulated this height of devices arbitrarily, the convenient full student of class, and especially back row student's watches.
Claims (1)
1. primary school mathematics rectangular area apparatus for demonstrating is characterized in that: the upper edge of panel (1) and left side along on be respectively equipped with the scale mark (2) that indicates length, said panel (1) is a double-decker, between panel (1) two-layer, is provided with magnet (3); Below said panel (1), be provided with case (5), be placed with several square iron plates (4) in the case (5), below said case (5), be provided with adjustable supporting leg (6), adjustable supporting leg (6) is provided with set bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205128836U CN202352171U (en) | 2011-12-04 | 2011-12-04 | Primary mathematics rectangular area demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205128836U CN202352171U (en) | 2011-12-04 | 2011-12-04 | Primary mathematics rectangular area demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352171U true CN202352171U (en) | 2012-07-25 |
Family
ID=46541157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205128836U Expired - Fee Related CN202352171U (en) | 2011-12-04 | 2011-12-04 | Primary mathematics rectangular area demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376511A (en) * | 2018-04-04 | 2018-08-07 | 秦苏 | A kind of evaporator applied to the detection teaching of middle school geography meteorology |
-
2011
- 2011-12-04 CN CN2011205128836U patent/CN202352171U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376511A (en) * | 2018-04-04 | 2018-08-07 | 秦苏 | A kind of evaporator applied to the detection teaching of middle school geography meteorology |
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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: 20120725 Termination date: 20131204 |