CN104608529A - Multifunctional mathematical education tool - Google Patents
Multifunctional mathematical education tool Download PDFInfo
- Publication number
- CN104608529A CN104608529A CN201510017962.2A CN201510017962A CN104608529A CN 104608529 A CN104608529 A CN 104608529A CN 201510017962 A CN201510017962 A CN 201510017962A CN 104608529 A CN104608529 A CN 104608529A
- Authority
- CN
- China
- Prior art keywords
- protractor
- main scale
- scale
- teaching aid
- rule
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L7/00—Straightedges
- B43L7/10—Plural straightedges relatively movable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/02—Compasses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
- G01B3/563—Protractors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a multifunctional mathematical education tool which comprises a main rule, a protractor and an auxiliary rule. A main rule scale is fixedly arranged on the main rule. A pin is rotationally installed. According to the multifunctional mathematical education tool, a triangular rule, the protractor, a straight rule and a pair of compasses are integrated to one education tool. When the tool is used as the compasses, chalk is clamped in an installation hole in the end of the main rule, a pre-tightening knob is screwed for tightening the chalk, a sucker of a compass rotary support is determined in the preset position, the education tool is rotated, and therefore an arc can be drawn. When an angle is measured, the two straight rules serve as two edges, a straight line can be drawn, flexible magnetic strips are arranged at the bottoms of the main rule and the auxiliary rule, and the magnetic education tool can be attached to a blackboard due to the fact that the existing blackboard is a steel board; the protractor arranged on the main rule can also serve as a handle, a teacher can be assisted in stabilizing the education tool to draw the straight line or measure the angle, and the tool can be freely moved in the plane of the blackboard without falling.
Description
Technical field
The present invention relates to teaching apparatus for mathematics technical field, be specially a kind of Multifunctional math teaching aid.
Background technology
On mathematics class, the angle of drawing different angles is problems that teacher teaches or often runs in students' work, the teacher attended class time error of mapping is larger, be unfavorable for the understanding of student, can with traditional compasses in teacher draws angle on blackboard, this compasses are as easy as rolling off a log at blackboard slippery surface, use inconvenience.Nowadays 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, special 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.
Summary of the invention
The object of the present invention 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 invention provides following technical scheme: a kind of Multifunctional math teaching aid, comprise main scale, protractor and secondary chi, described main scale is fixed with main scale scale, described protractor is fixedly mounted on main scale partial center line position by pin, namely near main scale left end or right end position, described protractor and center, main scale joint are provided with secondary chi by pin, described protractor edge is carved with protractor scale, the end, one end of described main scale installation hornwork is provided with rotation leg by pin, and described pin installation place is to rotate and installs.
Preferably, described secondary chi extends to protractor edge, and described secondary chi is provided with center graduation mark, described center line graduation mark is through protractor center, described center graduation mark can overlap with protractor scale, and judge the size of drawn angle, described secondary chi is fixed with secondary chi scale.
Preferably, described main scale the other end is fixed with the centering pin in the fixing center of circle, is sucker at centering pin end, and described centering pin and sucker junction are movable installation.
Preferably, the other end of described rotation leg is provided with and adds the pen cap, described in add the pen cap and be also provided with pretension knob for pretension chalk.
Preferably, described rotation leg lower surface is provided with the magnetosphere for attracting blackboard.
Preferably, described Multifunctional math teaching aid can be made with transparent material, or wood materials is made.
Compared with prior art, the invention has the beneficial effects as follows: the function of set square, protractor, ruler and compasses has focused on a teaching aid by this Multifunctional math teaching aid, when using as compasses, by in the installing hole of chalk clamp main scale end, tighten pretension knob to step up, then the sucker of compasses runing rest is determined in precalculated position, then rotate teaching aid, namely draw circular arc.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, is with magnetic teaching aid can be attached on blackboard, and the protractor that main scale is arranged also can be used as handle and uses, contribute to teacher to hold teaching aid and remove picture straight line or measuring angle, can also move freely in blackboard plane and can not drop.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is magnetosphere distributed architecture schematic diagram of the present invention.
In figure: 1, main scale, 11, protractor, 12, centering pin, 121, sucker, 13, main scale scale, 14, protractor scale, 15, pin, 2, secondary chi, 21, secondary chi scale, 22, center graduation mark, 3, leg is rotated, 31, add the pen cap, 311, pretension knob, 4, magnetosphere.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-2, the invention provides a kind of technical scheme: a kind of Multifunctional math teaching aid, comprise main scale 1, protractor 11 and secondary chi 2, main scale 1 is fixed with main scale scale 13, protractor 11 is fixedly mounted on main scale 1 partial center line position by pin 15, namely near main scale 1 left end or right end position, main scale 1 the other end is fixed with the centering pin 12 in the fixing center of circle, be sucker 121 at centering pin 12 end, centering pin 12 and sucker 121 junction are movable installation, when sucker 121 is put in blackboard plane by needs picture bowlder, not easily skid, position, the center of circle can be stablized, protractor 11 and center, main scale 1 joint are provided with secondary chi 2 by pin 15, secondary chi 2 extends to protractor 11 edge, secondary chi 2 is provided with center graduation mark 22, center line graduation mark 22 is through protractor 11 center, center graduation mark 22 can overlap with protractor scale 14, when revolute chi 2, center graduation mark 22 also rotates thereupon, indication protractor 11 scale is exactly drawn or measured angular dimension, the size of drawn angle can be judged, secondary chi 2 is fixed with secondary chi scale 21, such as, when drawing the limit at angle Len req, can get with measuring this moment, the end, one end of main scale 1 installation hornwork 11 is provided with by pin 15 and rotates leg 3, the other end rotating leg 3 is provided with and adds the pen cap 31, add the pen cap 31 and be also provided with pretension knob 311 for pretension chalk, rotate pretension knob 311 when chalk is put into wherein chalk to be stepped up, rotation leg 3 lower surface is provided with the magnetosphere 4 for attracting blackboard, magnetosphere 4 can be inhaled in blackboard plane, can also move in blackboard plane under the stirring of teacher, pin 15 installation place is to rotate and installs, realize main scale 1 and secondary chi 2, being rotatably connected of main scale 1 and the anglec of rotation 3, this Multifunctional math teaching aid can be made with transparent material, or wood materials is made.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (6)
1. a Multifunctional math teaching aid, comprise main scale, protractor and secondary chi, described main scale is fixed with main scale scale, it is characterized in that: described protractor is fixedly mounted on main scale partial center line position by pin, namely near main scale left end or right end position, described protractor and center, main scale joint are provided with secondary chi by pin, described protractor edge is carved with protractor scale, the end, one end of described main scale installation hornwork is provided with rotation leg by pin, and described pin installation place is to rotate and installs.
2. a kind of Multifunctional math teaching aid according to claim 1, it is characterized in that: described secondary chi extends to protractor edge, described secondary chi is provided with center graduation mark, described center line graduation mark is through protractor center, described center graduation mark can overlap with protractor scale, judge the size of drawn angle, described secondary chi is fixed with secondary chi scale.
3. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: described main scale the other end is fixed with the centering pin in the fixing center of circle, is sucker at centering pin end, and described centering pin and sucker junction are movable installation.
4. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: the other end of described rotation leg is provided with and adds the pen cap, described in add the pen cap and be also provided with pretension knob for pretension chalk.
5. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: described rotation leg lower surface is provided with the magnetosphere for attracting blackboard.
6. a kind of Multifunctional math teaching aid according to claim 1, is characterized in that: described Multifunctional math teaching aid can be made with transparent material, or wood materials is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017962.2A CN104608529A (en) | 2015-01-14 | 2015-01-14 | Multifunctional mathematical education tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017962.2A CN104608529A (en) | 2015-01-14 | 2015-01-14 | Multifunctional mathematical education tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104608529A true CN104608529A (en) | 2015-05-13 |
Family
ID=53143275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510017962.2A Pending CN104608529A (en) | 2015-01-14 | 2015-01-14 | Multifunctional mathematical education tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104608529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139612A (en) * | 2017-05-10 | 2017-09-08 | 韩军 | A kind of Multifunctional graduated scale and its application method |
| CN112874214A (en) * | 2021-03-08 | 2021-06-01 | 丽水学院 | Multifunctional mathematical teaching aid |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053577U (en) * | 1989-04-15 | 1990-02-28 | 卢恩光 | High-speed drafting machine |
| WO1997012767A1 (en) * | 1995-10-02 | 1997-04-10 | Folivi Felix | Combined protractor, compass, ruler and set square device |
| CN2454148Y (en) * | 2000-12-19 | 2001-10-17 | 项光辉 | Multi-purpose drawing ruler and gauge |
| CN2483201Y (en) * | 2001-06-21 | 2002-03-27 | 张鑫 | Multi-functional instrument for drawing circulr-curve or angles |
| CN2531950Y (en) * | 2002-03-31 | 2003-01-22 | 张立成 | Multi-function protractor |
| CN201890038U (en) * | 2010-08-15 | 2011-07-06 | 吴智强 | Multifunctional ruler for student |
| CN102529522A (en) * | 2010-12-18 | 2012-07-04 | 马雪梅 | Multifunctional scale |
| CN202764540U (en) * | 2012-09-07 | 2013-03-06 | 张灿 | Multifunctional teaching aid |
| CN203888474U (en) * | 2014-05-04 | 2014-10-22 | 国新建 | Multi-functional ruler |
| CN204414928U (en) * | 2015-01-14 | 2015-06-24 | 鲁杨 | A kind of Multifunctional math teaching aid |
-
2015
- 2015-01-14 CN CN201510017962.2A patent/CN104608529A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053577U (en) * | 1989-04-15 | 1990-02-28 | 卢恩光 | High-speed drafting machine |
| WO1997012767A1 (en) * | 1995-10-02 | 1997-04-10 | Folivi Felix | Combined protractor, compass, ruler and set square device |
| CN2454148Y (en) * | 2000-12-19 | 2001-10-17 | 项光辉 | Multi-purpose drawing ruler and gauge |
| CN2483201Y (en) * | 2001-06-21 | 2002-03-27 | 张鑫 | Multi-functional instrument for drawing circulr-curve or angles |
| CN2531950Y (en) * | 2002-03-31 | 2003-01-22 | 张立成 | Multi-function protractor |
| CN201890038U (en) * | 2010-08-15 | 2011-07-06 | 吴智强 | Multifunctional ruler for student |
| CN102529522A (en) * | 2010-12-18 | 2012-07-04 | 马雪梅 | Multifunctional scale |
| CN202764540U (en) * | 2012-09-07 | 2013-03-06 | 张灿 | Multifunctional teaching aid |
| CN203888474U (en) * | 2014-05-04 | 2014-10-22 | 国新建 | Multi-functional ruler |
| CN204414928U (en) * | 2015-01-14 | 2015-06-24 | 鲁杨 | A kind of Multifunctional math teaching aid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139612A (en) * | 2017-05-10 | 2017-09-08 | 韩军 | A kind of Multifunctional graduated scale and its application method |
| CN112874214A (en) * | 2021-03-08 | 2021-06-01 | 丽水学院 | Multifunctional mathematical teaching aid |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |