CN202523250U - Primary mathematics teaching demonstrating device - Google Patents
Primary mathematics teaching demonstrating device Download PDFInfo
- Publication number
- CN202523250U CN202523250U CN2012200293687U CN201220029368U CN202523250U CN 202523250 U CN202523250 U CN 202523250U CN 2012200293687 U CN2012200293687 U CN 2012200293687U CN 201220029368 U CN201220029368 U CN 201220029368U CN 202523250 U CN202523250 U CN 202523250U
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- demonstrating
- cylinders
- mathematics teaching
- windows
- brackets
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Abstract
A primary mathematics teaching demonstrating device pertains to a primary mathematics teaching aid and is realized as follows: brackets are arranged at two side edges of a supporting board, a horizontal shaft is arranged between the brackets, and three cylinders with numbers are arranged on the horizontal shaft; and three demonstrating windows are arranged from left to right on the supporting board between the brackets, the demonstrating windows from left to right are respectively provided with operational signs and an equal sign, adjustable supporting legs are provided below the supporting board, and fixing bolts are arranged on the supporting legs. The primary mathematics teaching demonstrating device is simple in structure, convenient in use and simple in manufacture; when the device is used, numbers are respectively written around the cylinders on the three cylinders, when number operation is needed, the cylinders can be rotated to make the numbers on the cylinders appear in the demonstrating windows, and thus the teaching effect is improved; and with the arrangement of the adjustable supporting legs, the height of the demonstrating device can be adjusted conveniently to facilitate watching of students sitting back.
Description
Technical field:
The utility model belongs to the primary school math teaching assistant product, particularly the primary school math teaching apparatus for demonstrating.
Background technology:
In primary school math teaching, teacher is giving lessons when running into signed magnitude arithmetic(al) the formula that usually need on blackboard, write plus and minus calculation; The mode that employing is write, it is uninteresting that the student tends to feel, is unfavorable for motivating students' interest in learning; Results of learning are poor, also unusual fatigue of teacher.
The utility model content:
The utility model overcomes the deficiency of the problems referred to above, and primary school math teaching apparatus for demonstrating a kind of simple in structure, easy to use is provided, and this apparatus for demonstrating is made simple, and is easy to use.This primary school math teaching apparatus for demonstrating be achieved in that the dual-side of back up pad along on be provided with support, be provided with transverse axis between the support, transverse axis is provided with three cylinders, cylinder is provided with numeral; On the back up pad between the support, be provided with three demonstration windows from left to right, be respectively equipped with the sign of operation and the number of equaling between the demonstration window from left to right, below said back up pad, be provided with adjustable supporting leg, adjustable supporting leg is provided with set bolt.
The utility model is simple in structure, and making easy to use is simple, and is easy to use, during use; On three cylinders respectively around cylinder with numeral, when needs carry out digital operation constantly, can rotor, the numeral on the cylinder is appeared in the demonstration window; Reduce the writing time of teacher on the classroom, increased students'interest in learning, improved teaching efficiency; The setting of adjustable supporting leg can be regulated the height of apparatus for demonstrating easily, and convenient back row student watches.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model, 1, cylinder 2, back up pad 3, demonstration window 4, set bolt 5, adjustable supporting leg 6, transverse axis 7, support
Embodiment:
1 embodiment is in conjunction with accompanying drawing: the primary school math teaching apparatus for demonstrating; Form by back up pad 2, support 7, transverse axis and cylinder 1, on the dual-side edge of back up pad 2, be provided with support 7, be provided with transverse axis 6 between the support 7; Transverse axis 6 is provided with three cylinders 1, and cylinder 1 is provided with numeral; On the back up pad between the support 72, be provided with three demonstration windows 3 from left to right, be respectively equipped with the sign of operation and the number of equaling between the demonstration window 3 from left to right, below said back up pad 2, be provided with adjustable supporting leg 5, adjustable supporting leg 5 is provided with set bolt 4.
The utility model is simple in structure, and making easy to use is simple, and is easy to use, during use; On three cylinders respectively around cylinder with numeral, when needs carry out digital operation constantly, can rotor, the numeral on the cylinder is appeared in the demonstration window; Reduce the writing time of teacher on the classroom, increased students'interest in learning, improved teaching efficiency; The setting of adjustable supporting leg can be regulated the height of apparatus for demonstrating easily, and convenient back row student watches.
Claims (1)
1. primary school math teaching apparatus for demonstrating is characterized in that: the dual-side of back up pad (2) along on be provided with support (7), be provided with transverse axis (6) between the support (7), transverse axis (6) is provided with three cylinders (1), cylinder (1) is provided with numeral; On the back up pad (2) between the support (7), be provided with three demonstration windows (3) from left to right; Be respectively equipped with the sign of operation and the number of equaling between the demonstration window (3) from left to right; Below said back up pad (2), be provided with adjustable supporting leg (5), adjustable supporting leg (5) is provided with set bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200293687U CN202523250U (en) | 2012-01-15 | 2012-01-15 | Primary mathematics teaching demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200293687U CN202523250U (en) | 2012-01-15 | 2012-01-15 | Primary mathematics teaching demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202523250U true CN202523250U (en) | 2012-11-07 |
Family
ID=47106188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200293687U Expired - Fee Related CN202523250U (en) | 2012-01-15 | 2012-01-15 | Primary mathematics teaching demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202523250U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282192A (en) * | 2014-10-17 | 2015-01-14 | 南丹县青少年学生校外活动中心 | Count demonstrator |
| CN105894904A (en) * | 2016-06-23 | 2016-08-24 | 董爱满 | Teaching aid for teaching children |
| CN113593370A (en) * | 2021-07-30 | 2021-11-02 | 脑谷人工智能研究院(南京)有限公司 | Teaching equipment for guiding children to correctly learn |
-
2012
- 2012-01-15 CN CN2012200293687U patent/CN202523250U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282192A (en) * | 2014-10-17 | 2015-01-14 | 南丹县青少年学生校外活动中心 | Count demonstrator |
| CN105894904A (en) * | 2016-06-23 | 2016-08-24 | 董爱满 | Teaching aid for teaching children |
| CN113593370A (en) * | 2021-07-30 | 2021-11-02 | 脑谷人工智能研究院(南京)有限公司 | Teaching equipment for guiding children to correctly learn |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20130115 |