CN204278857U - A kind of Multifunctional math teaching aid - Google Patents

A kind of Multifunctional math teaching aid Download PDF

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Publication number
CN204278857U
CN204278857U CN201420752170.0U CN201420752170U CN204278857U CN 204278857 U CN204278857 U CN 204278857U CN 201420752170 U CN201420752170 U CN 201420752170U CN 204278857 U CN204278857 U CN 204278857U
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China
Prior art keywords
main scale
teaching aid
secondary chi
compasses
scale
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Expired - Fee Related
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CN201420752170.0U
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Chinese (zh)
Inventor
郭伟
康哲
贾玮
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郭伟
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Priority to CN201420752170.0U priority Critical patent/CN204278857U/en
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Publication of CN204278857U publication Critical patent/CN204278857U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of Multifunctional math teaching aid, comprise compasses support and hinged button, described secondary chi, main scale is all identical with thickness with compasses support three length, circular discs surface, described main scale end is provided with angle groove, 0 degree of described angle groove, 180 degree and 360 degree of graduation marks are on main scale center line, all magnetic stripe is installed bottom described main scale and secondary chi, this Multifunctional math teaching aid is by set square, protractor, the function of ruler and compasses focuses on a teaching aid, when using as compasses, by in the installing hole of chalk clamp main scale end, again the pointer of compasses support is determined in precalculated position, rotate main scale again, namely circular arc is drawn, when taking measurement of an angle, only need using two rulers as two limits, straight line can also be drawn, soft magnetic stripe is equipped with bottom main scale and secondary chi, blackboard for education is steel plate now, be with magnetic teaching aid can be attached on blackboard, main scale surface is provided with handle, contribute to teacher to hold teaching aid and remove picture straight line or measuring angle.

Description

A kind of Multifunctional math teaching aid
Technical field
The utility model relates to teaching aid technical field, is specially a kind of Multifunctional math teaching aid.
Background technology
Good education is that each child grows up important step, mathematical education is also particularly important, mathematics is except formula and other utilizations, the geometric expression of mathematics is also particularly important, especially in geometry curriculum, in the mathematics teaching aid of existing majority, as set square, ruler, protractor and compasses are all independent a kind of instruments, teacher attends class and whole teaching aid can not be carried, so use and carry all inconvenient, particularly protractor and compasses, due to the reason of instrument itself, cause angulation and draw circle usually inaccurate, have a strong impact on quality of instruction like this, the expression of mathematics geometric meaning is restricted, be unfavorable for that student understands digestion.
Utility model content
The purpose of this utility model is to provide a kind of Multifunctional math teaching aid, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of Multifunctional math teaching aid, comprise secondary chi, main scale, compasses support and hinged button, described secondary chi, main scale is all identical with thickness with compasses support three length, main scale scale is carved with in described main scale side, described main scale one end is fixed with installing hole, described compasses support one end is fixed with pointer, described main scale middle part surface is fixed with handle, described main scale, compasses support and the secondary chi other end rounded plate-like respectively, and disc centre is equipped with perforation, described main scale, compasses support and secondary chi arrange from top to bottom successively and run through perforation fixed installation by hinged button, circular discs surface, described main scale end is provided with angle groove, 0 degree of described angle groove, 180 degree and 360 degree of graduation marks are on main scale center line, all magnetic stripe is installed bottom described main scale and secondary chi.
Preferably, described secondary chi both sides are all fixed with scale, and set scale is identical with main scale scale.
Preferably, described magnetic stripe is soft magnetism bar, and be connected with main scale lower surface super glue, area is identical with main scale area.
Preferably, described main scale, compasses support and secondary chi coordinate the rotation that can realize different angles with hinged button.
Preferably, described handle two sides all cave inward.
Preferably, circular discs surface, described compasses support one end caves inward, and depression thickness is identical with main scale thickness.
Preferably, described main scale, compasses support and secondary chi are all made with transparent plastic.
Compared with prior art, the beneficial effects of the utility model are: this Multifunctional math teaching aid is by set square, protractor, the function of ruler and compasses has focused on a teaching aid, when using as compasses, by in the installing hole of chalk clamp main scale end, then the pointer of compasses support is determined in precalculated position, rotate teaching aid again, namely circular arc is drawn, when taking measurement of an angle, only need using two rulers as two limits, straight line can also be drawn, soft magnetic stripe is equipped with bottom main scale and secondary chi, blackboard for education is steel plate now, be with magnetic teaching aid can be attached on blackboard, main scale surface is provided with handle, contribute to teacher to hold teaching aid and remove picture straight line or measuring angle, set handle can also be coordinated to move freely in blackboard plane.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model magnetosphere position view;
Fig. 3 is the utility model grip structure schematic diagram;
Fig. 4 is the utility model compasses support schematic diagram;
Fig. 5 is the utility model main scale schematic diagram;
Fig. 6 is the secondary chi schematic diagram of the utility model.
In figure: 1 secondary chi, 2 main scales, 3 main scale scales, 4 handles, 5 installing holes, 6 pointers, 7 compasses supports, 8 hinged buttons, 9 circular discs, 10 magnetic stripes, 11 angle grooves, twelve punch.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-6, the utility model provides a kind of technical scheme: 1. a Multifunctional math teaching aid, comprise secondary chi 1, main scale 2, compasses support 7 and hinged button 8, secondary chi 1 both sides are all fixed with scale, set scale is identical with main scale scale 3, secondary chi 1, main scale 2 is all identical with thickness with compasses support 7 three length, main scale scale 3 is carved with in main scale 2 side, main scale 2 one end is fixed with installing hole 5, compasses support 7 one end is fixed with pointer 6, when drawing circle or draw arc, pointer 6 is for the fixing center of circle, main scale 2 middle part surface is fixed with handle 4, handle 4 two sides all cave inward, be conducive to clutching teaching aid, improve picture efficiency, main scale 2, compasses support 7 and secondary chi 1 other end rounded dish 9 shape respectively, and disk 9 center is equipped with perforation 12, circular discs 9 surface, compasses support 7 one end caves inward, depression thickness is identical with main scale 2 thickness, compasses support 7 and main scale 2 is ensure that at grade during installation, main scale 2, compasses support 7 and secondary chi 1 arrange from top to bottom successively and run through perforation 12 by hinged button 8 and fixedly mount, main scale 2, compasses support 7 and secondary chi coordinate the rotation that can realize different angles with hinged button 8, main scale 2, when compasses support 7 and secondary chi 1 are completely closed, main scale 2 and secondary chi 1 overlap, make when needing the fixing angle of picture, only main scale 2 and secondary chi 1 need be broken into two with one's hands, can to the scale that should have angular dimension in circular discs 9, when reaching required angular dimension again along main scale 2 and secondary chi 1 edge, draw Len req, when needs picture bowlder, only main scale 2 and compasses support 7 need be separated, the center of circle is fixed with compasses support 7 one end pointer, rotation teaching aid, described main scale 2, compasses support 7 and secondary chi 1 are all made with transparent plastic, contribute to the clear scale seen in circular discs 9, circular discs 9 surface, main scale 2 end is provided with angle groove 11, 0 degree of angle groove 11, 180 degree and 360 degree of graduation marks are on main scale 2 center line, bottom main scale 2 and secondary chi 1, magnetic stripe 10 is all installed, magnetic stripe 10 is soft magnetism bar, be connected with main scale 2 lower surface super glue, area is identical with main scale 2 area, blackboard for education is steel plate now, be with magnetic teaching aid can be attached on blackboard, be attached on blackboard when needs are drawn by stable for teaching aid, contribute to stablizing in teaching aid use procedure, handle 4 can also be coordinated to be moved freely in blackboard plane by this teaching aid.
Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, scope of the present utility model is by claims and equivalents thereof.

Claims (7)

1. a Multifunctional math teaching aid, comprise secondary chi, main scale, compasses support and hinged button, described secondary chi, main scale is all identical with thickness with compasses support three length, main scale scale is carved with in described main scale side, described main scale one end is fixed with installing hole, described compasses support one end is fixed with pointer, it is characterized in that: described main scale middle part surface is fixed with handle, described main scale, compasses support and the secondary chi other end rounded plate-like respectively, and disc centre is equipped with perforation, described main scale, compasses support and secondary chi arrange from top to bottom successively and run through perforation fixed installation by hinged button, circular discs surface, described main scale end is provided with angle groove, 0 degree of described angle groove, 180 degree and 360 degree of graduation marks are on main scale center line, all magnetic stripe is installed bottom described main scale and secondary chi.
2. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: described secondary chi both sides are all fixed with scale, and set scale is identical with main scale scale.
3. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: described magnetic stripe is soft magnetism bar, and be connected with main scale lower surface super glue, area is identical with main scale area.
4. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: described main scale, compasses support and secondary chi coordinate the rotation that can realize different angles with hinged button.
5. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: described handle two sides all cave inward.
6. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: circular discs surface, described compasses support one end caves inward, and depression thickness is identical with main scale thickness.
7. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: described main scale, compasses support and secondary chi are all made with transparent plastic.
CN201420752170.0U 2014-12-02 2014-12-02 A kind of Multifunctional math teaching aid Expired - Fee Related CN204278857U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420752170.0U CN204278857U (en) 2014-12-02 2014-12-02 A kind of Multifunctional math teaching aid

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Application Number Priority Date Filing Date Title
CN201420752170.0U CN204278857U (en) 2014-12-02 2014-12-02 A kind of Multifunctional math teaching aid

Publications (1)

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CN204278857U true CN204278857U (en) 2015-04-22

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105128572A (en) * 2015-08-19 2015-12-09 陈俞任 Aluminum molybdenum alloy circular-groove corner-pointer coplanar teaching set square
CN105150725A (en) * 2015-09-22 2015-12-16 赵泓钦 Multifunctional teaching aid for math class
CN105818579A (en) * 2016-06-02 2016-08-03 华北理工大学 Teaching ruler with magnetic attraction blocks
CN106079979A (en) * 2016-08-05 2016-11-09 张旭光 A kind of multifunctional mathmatical coordinatometer
CN109109523A (en) * 2018-08-23 2019-01-01 蒋永梅 A kind of ruler integral type teaching aid for modern mathematics teaching
CN112874214A (en) * 2021-03-08 2021-06-01 丽水学院 Multifunctional mathematical teaching aid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105128572A (en) * 2015-08-19 2015-12-09 陈俞任 Aluminum molybdenum alloy circular-groove corner-pointer coplanar teaching set square
CN105150725A (en) * 2015-09-22 2015-12-16 赵泓钦 Multifunctional teaching aid for math class
CN105818579A (en) * 2016-06-02 2016-08-03 华北理工大学 Teaching ruler with magnetic attraction blocks
CN106079979A (en) * 2016-08-05 2016-11-09 张旭光 A kind of multifunctional mathmatical coordinatometer
CN109109523A (en) * 2018-08-23 2019-01-01 蒋永梅 A kind of ruler integral type teaching aid for modern mathematics teaching
CN112874214A (en) * 2021-03-08 2021-06-01 丽水学院 Multifunctional mathematical teaching aid

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150422

Termination date: 20151202

EXPY Termination of patent right or utility model