CN202213388U - Mathematics teaching aid - Google Patents

Mathematics teaching aid Download PDF

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Publication number
CN202213388U
CN202213388U CN2011202929847U CN201120292984U CN202213388U CN 202213388 U CN202213388 U CN 202213388U CN 2011202929847 U CN2011202929847 U CN 2011202929847U CN 201120292984 U CN201120292984 U CN 201120292984U CN 202213388 U CN202213388 U CN 202213388U
Authority
CN
China
Prior art keywords
teaching aid
rotating shaft
mathematics teaching
disk
reference axis
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
CN2011202929847U
Other languages
Chinese (zh)
Inventor
时琰琰
Original Assignee
时琰琰
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 时琰琰 filed Critical 时琰琰
Priority to CN2011202929847U priority Critical patent/CN202213388U/en
Application granted granted Critical
Publication of CN202213388U publication Critical patent/CN202213388U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a mathematics teaching aid, which comprises a coordinate axis (3). A rotary shaft (2) is arranged at an original point of the coordinate axis (3), a plurality of discs (1) are disposed on the rotary shaft (2), diameters of the discs are reduced gradually, special-shaped holes (6) are arranged at edges of the discs (1), pens are inserted in the special-shaped holes (6), and a ruler (4) is further arranged on the rotary shaft (2). The mathematics teaching aid in the structure has the advantage that the mathematics teaching aid is convenient in use, time and labor are saved, and workload of teachers is reduced.

Description

Mathematics teaching aid
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of mathematics teaching aid.
Background technology
At present, the teacher often uses teaching aid on blackboard, to map in the mathematical education process; Especially in the geometric construction presentation process; Can use set square teaching aid, compasses teaching aid, protractor teaching aid, these teaching aids relatively disperse, and need during mapping to change back and forth; Waste valuable instructional blocks of time, and increased teacher's workload greatly.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, and is easy to use, time saving and energy saving, can reduce the mathematics teaching aid of teacher workload.
The technical scheme of the utility model is a kind of mathematics teaching aid; It comprises reference axis 3; It is characterized in that: the initial point place in said reference axis 3 is provided with rotating shaft 2; In said rotating shaft 2, be provided with some disks 1 that diameter reduces gradually, be equipped with the irregularly-shaped hole 6 that supplies penholder to go into, in said rotating shaft 2, also be provided with ruler 4 in the edge of said each disk 1.
The technical scheme of the utility model also has an end of contiguous maximum gauge disk 1 in said rotating shaft 2 to be provided with sucker 7, and the other end is provided with clamp nut 5.
The beneficial effect of the utility model is to be provided with rotating shaft 2 through the initial point place in said reference axis 3, in said rotating shaft 2, is provided with some disks 1 that diameter reduces gradually, is equipped with the irregularly-shaped hole 6 that supplies penholder to go in the edge of said each disk 1; During use; Penholder is gone into irregularly-shaped hole 6 and rotating circular disk 1, and circle or the circular arc of differing in size that can on blackboard, draw is used through the ruler 4 that is arranged in the rotating shaft 2 again; Straight line at any angle can draw; Realized easy to usely, time saving and energy saving, reduced the effect of teacher workload.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is the vertical view of the utility model among Fig. 1
Among Fig. 1,21, disk, 2, rotating shaft, 3, reference axis, 4, ruler, 5, nut, 6, irregularly-shaped hole, 7, sucker.
The specific embodiment
According to Fig. 1, shown in 2, the utility model relates to a kind of mathematics teaching aid, and it comprises a kind of mathematics teaching aid; It comprises reference axis 3, is provided with rotating shaft 2 at the initial point place of said reference axis 3, in said rotating shaft 2, is provided with some disks 1 that diameter reduces gradually; Edge at said each disk 1 is equipped with the irregularly-shaped hole 6 that supplies penholder to go into; In said rotating shaft 2, also be provided with ruler 4, an end of contiguous maximum gauge disk 1 is provided with sucker 7 in said rotating shaft 2, and the other end is provided with clamp nut 5; Initial point place through in said reference axis 3 is provided with rotating shaft 2, in said rotating shaft 2, is provided with some disks 1 that diameter reduces gradually, is equipped with the irregularly-shaped hole 6 that supplies penholder to go in the edge of said each disk 1; During use, penholder is gone into irregularly-shaped hole 6 and rotating circular disk 1, circle or the circular arc of differing in size can draw on blackboard; Be used through the ruler 4 that is arranged in the rotating shaft 2, the straight line at any angle that draws has been realized easy to use again; Time saving and energy saving, the effect of reduction teacher workload.

Claims (2)

1. mathematics teaching aid; It comprises reference axis (3); It is characterized in that: be provided with rotating shaft (2) at the initial point place of said reference axis (3); In said rotating shaft (2), be provided with some disks (1) that diameter reduces gradually, be equipped with the irregularly-shaped hole (6) that supplies penholder to go into, in said rotating shaft (2), also be provided with ruler (4) in the edge of said each disk (1).
2. mathematics teaching aid according to claim 1 is characterized in that: an end of going up contiguous maximum gauge disk (1) in said rotating shaft (2) is provided with sucker (7), and the other end is provided with clamp nut (5).
CN2011202929847U 2011-08-03 2011-08-03 Mathematics teaching aid Expired - Fee Related CN202213388U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202929847U CN202213388U (en) 2011-08-03 2011-08-03 Mathematics teaching aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202929847U CN202213388U (en) 2011-08-03 2011-08-03 Mathematics teaching aid

Publications (1)

Publication Number Publication Date
CN202213388U true CN202213388U (en) 2012-05-09

Family

ID=46012657

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202929847U Expired - Fee Related CN202213388U (en) 2011-08-03 2011-08-03 Mathematics teaching aid

Country Status (1)

Country Link
CN (1) CN202213388U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107097569A (en) * 2017-06-20 2017-08-29 屈雷涛 One kind teaching picture circle and oval apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107097569A (en) * 2017-06-20 2017-08-29 屈雷涛 One kind teaching picture circle and oval apparatus

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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: 20120509

Termination date: 20140803

EXPY Termination of patent right or utility model