CN202480698U - Multi-functional primary-school mathematic teaching tool - Google Patents

Multi-functional primary-school mathematic teaching tool Download PDF

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Publication number
CN202480698U
CN202480698U CN2012201540889U CN201220154088U CN202480698U CN 202480698 U CN202480698 U CN 202480698U CN 2012201540889 U CN2012201540889 U CN 2012201540889U CN 201220154088 U CN201220154088 U CN 201220154088U CN 202480698 U CN202480698 U CN 202480698U
Authority
CN
China
Prior art keywords
compasses
supporting leg
rotating shaft
compasses supporting
protractor
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
Application number
CN2012201540889U
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Chinese (zh)
Inventor
张永芹
Original Assignee
张永芹
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 张永芹 filed Critical 张永芹
Priority to CN2012201540889U priority Critical patent/CN202480698U/en
Application granted granted Critical
Publication of CN202480698U publication Critical patent/CN202480698U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a multi-functional primary-school mathematic teaching tool which comprises a protractor and compasses. The center of the protractor is connected with a first support leg of the compasses and a second support leg of the compasses through a rotating shaft. One end of the first support leg of the compasses far from the rotating shaft is provided with a needle-tip portion, one end of the second support leg of the compasses far from the rotating shaft is connected with a chalk sleeve, and chalks are arranged inside the chalk sleeve. The multi-functional primary-school mathematic teaching tool is simple in structure, reasonable in design, convenient to carry, easy to use and integrated with a plurality of functions, and can not only relieve the burden of a teacher, but also effectively improve teaching efficiency.

Description

A kind of multi-functional primary school math teaching apparatus
Technical field
The utility model relates to a kind of mathematical education apparatus, is to relate in particular to a kind of multi-functional primary school math teaching apparatus.
Background technology
At present, in the primary school math teaching process, the teacher often need use many teaching aids; As need use ruler when drawing straight line, and draw bowlder and need use compasses, need use protractor when taking measurement of an angle; When drawing the angle of certain angle, need use protractor and ruler or the like simultaneously.These teaching aids generally disperse to place, and multiple apparatus on math teacher need be with when giving lessons not only carries inconvenience, and in a rush sometimes in giving lessons, and influences efficiency of teaching easily.
The utility model content
The problem that the utility model will solve provides a kind of simple in structure, and is reasonable in design, is convenient for carrying, and is easy to use, and integrates functions as one, and can alleviate teacher's burden, can effectively improve the multi-functional primary school math teaching apparatus of efficiency of teaching again.
In order to address the above problem, the utility model adopts following technical scheme:
A kind of multi-functional primary school math teaching apparatus; Comprise protractor and compasses; The center of protractor is connected with the second compasses supporting leg with the first compasses supporting leg through rotating shaft; The said first compasses supporting leg is provided with needle tip away from an end of rotating shaft, and the second compasses supporting leg is connected with chalk sleeve away from an end of rotating shaft, and chalk is installed in chalk sleeve.
When needs take measurement of an angle, can measure at any angle through protractor, when the needs angle was carried out line, the rotatable first compasses supporting leg made needle tip aim at corresponding scale, ruling along the first compasses supporting leg then gets final product.
When needs picture bowlder; Can the needle tip of the first compasses supporting leg be fixed on the blackboard; The second compasses supporting leg and the first compasses supporting leg are separated certain distance; The amount of spin hornwork drives the second compasses supporting leg and rotates around the first compasses supporting leg, makes the draw circle of required radius of chalk on the second compasses supporting leg.
The utility model is simple in structure, and is reasonable in design, is convenient for carrying, and is easy to use, and integrates functions as one, and can alleviate teacher's burden, can effectively improve efficiency of teaching again.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
Among the figure: the 1-protractor; The 2-rotating shaft; The 3-first compasses supporting leg; The 4-needle tip; The 5-chalk sleeve; The 6-chalk; The 7-second compasses supporting leg.
The specific embodiment
A kind of multi-functional primary school math teaching apparatus; Examples of implementation are as shown in the figure; Comprise protractor 1, the center of protractor 1 is connected with the second compasses supporting leg 7 with the first compasses supporting leg 3 through rotating shaft 2, and the said first compasses supporting leg 3 is provided with needle tip 4 away from an end of rotating shaft 2; The second compasses supporting leg 7 is connected with chalk sleeve 5 away from an end of rotating shaft 2, and chalk 6 is installed in chalk sleeve 5.
When needs take measurement of an angle, can measure at any angle through protractor 1, when the needs angle was carried out line, the rotatable first compasses supporting leg 3 made needle tip 4 aim at corresponding scale, ruling along the first compasses supporting leg 3 then gets final product.
When needs picture bowlder; Can the needle tip 4 of the first compasses supporting leg 3 be fixed on the blackboard; The second compasses supporting leg 7 and the first compasses supporting leg were opened certain distance in 3 minutes; Amount of spin hornwork 1 drives the second compasses supporting leg 7 and rotates around the first compasses supporting leg 3, makes the draw circle of required radius of chalk on the second compasses supporting leg 7.
The utility model is simple in structure, and is reasonable in design, is convenient for carrying, and is easy to use, and integrates functions as one, and can alleviate teacher's burden, can effectively improve efficiency of teaching again.

Claims (1)

1. multi-functional primary school math teaching apparatus; Comprise protractor; The center of protractor is rotatably connected to the first compasses supporting leg and the second compasses supporting leg through rotating shaft; The said first compasses supporting leg is provided with needle tip away from an end of rotating shaft, and the second compasses supporting leg is connected with chalk sleeve away from an end of rotating shaft, and chalk is installed in chalk sleeve.
CN2012201540889U 2012-04-03 2012-04-03 Multi-functional primary-school mathematic teaching tool Expired - Fee Related CN202480698U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201540889U CN202480698U (en) 2012-04-03 2012-04-03 Multi-functional primary-school mathematic teaching tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201540889U CN202480698U (en) 2012-04-03 2012-04-03 Multi-functional primary-school mathematic teaching tool

Publications (1)

Publication Number Publication Date
CN202480698U true CN202480698U (en) 2012-10-10

Family

ID=46955154

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201540889U Expired - Fee Related CN202480698U (en) 2012-04-03 2012-04-03 Multi-functional primary-school mathematic teaching tool

Country Status (1)

Country Link
CN (1) CN202480698U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121010

Termination date: 20140403

C17 Cessation of patent right