CN103093668B - Polygonal dynamic demonstration teaching aid - Google Patents
Polygonal dynamic demonstration teaching aid Download PDFInfo
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- CN103093668B CN103093668B CN201310047552.3A CN201310047552A CN103093668B CN 103093668 B CN103093668 B CN 103093668B CN 201310047552 A CN201310047552 A CN 201310047552A CN 103093668 B CN103093668 B CN 103093668B
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- block
- ruler
- inserting column
- slide
- teaching aid
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
- G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
Abstract
The invention relates to a polygonal dynamic demonstration teaching aid which comprises a plurality of rulers, a through groove is formed in the middle of each ruler in the length direction, a plurality of sliders are installed in each through groove, the sliders can slide in the through grooves, an inserting connection post is arranged on the top of each slider, a sleeved connection hole which can be matched with each inserting connection post is formed in the bottom of each slider, the rulers can be vertically folded, the sliders can be mutually and vertically overlapped and combined together, and thereby the plurality of rulers can be combined into various polygonal shapes. In demonstration, the upper ruler and the lower ruler can be overlapped or separated according to requirements and form various intuitive polygons in an assembling mode. Assembly and disassembly of the rulers are simple, time-saving and convenient. Drawing workload of a user or a teacher can be reduced, students can further cultivate abilities such as thinking, association, analogy and observation, imagination of the students is aroused, and interest of learning geometry of the students is improved.
Description
Technical field
The present invention relates to dynamic demonstration teaching aid, particularly a kind of polygon dynamic demonstration teaching aid how much.
Background technology
At present, in several teaching, teaching aid generally has ruler, set square etc., when teaching drawing, draw to basic previous step one step that teacher can only be online own needed figure, drawing course is loaded down with trivial details and not directly perceived, teacher should draw again and say, very busy, association, analogy, observation and the manipulative ability that simultaneously can not cultivate preferably student, will certainly affect the effect of several teaching.And itself there are many drawbacks in them: carry inconvenience, use also inconvenience, prior or function singleness.
On the other hand, existing how much teaching aids, although can ocular demonstration geometric figure,, the figure that can demonstrate is fewer, and usable range is narrow.
And some how much teaching aids adopt wing bolts or nut to connect, assembly and disassembly are all cumbersome and spended time is longer, affect the continuity of teaching demonstration.
Summary of the invention
Technical matters to be solved by this invention is, a kind of polygon dynamic demonstration teaching aid is provided, the polygon of often using during dynamic demonstration several teaching intuitively and the figure of correlation theorem, the geometric figure of capable of dynamic demonstration is many, and dismounting simply saves time, easy to use.
For solving the problems of the technologies described above, the invention provides a kind of polygon dynamic demonstration teaching aid, comprise some rulers, in the middle of each ruler, be provided with along its length groove, some slide blocks are installed in groove, slide block can slide in groove, in slider top, be provided with inserting column, be provided with the sleeve joint hole that can match with inserting column at slider bottom, ruler can be stacked up and down, its slide block can be vertically stacked together mutually, thus make some ruler can be combined into various polygon-shaped.
Further, in the both sides of groove, be concaved with step surface, gathering sill and end concave surface respectively in ruler, step surface is lower than the end face of ruler, and end concave surface is lower than the bottom surface of ruler, and gathering sill is lower than step surface and away from groove; A side at gathering sill is concaved with some vertical grooves in ruler.
Further, slide block also comprises upper holder block and the lower lock block that can mutually fasten, and upper holder block is arranged on the step surface and gathering sill of groove both sides, and can in gathering sill, slide, and lower lock block is arranged in the end concave surface of groove both sides, and can on end concave surface, slide; Bottom surface at upper holder block convexes with guiding rib, and guiding rib matches with gathering sill.
Further, two sides at upper holder block are concaved with respectively decorative pearl on top of an official cap hole, and the decorative pearl on top of an official cap that spring and an end face are bulb shape is installed successively in decorative pearl on top of an official cap hole, and the decorative pearl on top of an official cap can slide in decorative pearl on top of an official cap hole, the bulb of the decorative pearl on top of an official cap can exceed the side of upper holder block, and can only touch on vertical rooved face.
Further, at slide block end face, be provided with magnetic conduction buckling piece, in slide block bottom surface, be provided with magnetic piece, by magnetic conduction buckling piece, the slide block of different rulers can be vertically stacked together mutually from the magnetic absorption effect of magnetic piece; Magnetic conduction buckling piece can snap together upper holder block, lower lock block and magnetic piece.
Further, inserting column is convexly equipped with in the centre position of lower lock block end face, and inserting column is connected in series upper holder block and magnetic conduction buckling piece, and exceeds the end face of magnetic conduction buckling piece; Sleeve joint hole is arranged on the bottom of lower lock block, and is positioned at the below of inserting column, and sleeve joint hole can match with another the inserting column of ruler slide block.
Further, the end of inserting column is provided with connected structure, is provided with the socket join structure that can cooperatively interact with connected structure in sleeve joint hole.
Further, connected structure is the annular groove that is arranged on inserting column end; Socket join structure comprises two fixture blocks and fastener, and two fixture blocks are separately positioned on the both sides of sleeve joint hole, is provided with the chute that fixture block is installed on lower lock block, and fixture block can slide in chute; The spacing of two fixture block front ends is not more than the external diameter of inserting column, and two fixture blocks can be connected in the inserting column annular groove of slide block of another ruler.
Further, fastener is socketed on inserting column, and fastener dual-side is respectively equipped with two catch, and two catch are only against respectively the tail end of two fixture blocks, and catch can swing in the cavity volume of upper holder block and lower lock block assembling formation.
Further, polygon dynamic demonstration teaching aid is also furnished with the protractor that surface is provided with angle index, at the center of protractor, is provided with circular hole, and circular hole can be sleeved on inserting column
Compared with prior art, a kind of polygon dynamic demonstration teaching aid of the present invention, comprise some ruler, in the middle of ruler, be provided with groove, in groove, be provided with some slide blocks, slide block can slide in groove, in slider top, is provided with inserting column, is provided with the sleeve joint hole that can match with inserting column at slider bottom.Ruler can be stacked up and down, and its slide block can be vertically stacked together mutually, thus make some ruler can be combined into various polygon-shaped.When the present invention demonstrates, closed assembly or separated upper and lower two rulers as required, the dismounting of ruler simply saves time, easy to use.Can alleviate teacher's mapping workload, can also cultivate student and beat one's brains, associate analogy and observation ability, excite student's imagination, improve the geometric interest of Students ' Learning.
Accompanying drawing explanation
Fig. 1 is the schematic appearance of a preferred embodiment of the present invention;
Fig. 2 is M schematic cross-section in Fig. 1;
Fig. 3 is the schematic perspective view of slide block the first embodiment in Fig. 1;
Fig. 4 is the decomposing schematic representation of Fig. 3;
Fig. 5 is the schematic perspective view of slide block the second embodiment of the present invention;
Fig. 6 is the schematic diagram in N cross section in Fig. 5;
Fig. 7 is the decomposing schematic representation of Fig. 5;
Fig. 8 is the arbitrary triangle schematic diagram that the present invention demonstrates;
Fig. 9 is the similar schematic diagram of triangle that the present invention demonstrates;
Figure 10 is the trapezoidal neutrality line schematic diagram that the present invention demonstrates;
Figure 11 is the diagonal line schematic diagram of the rhombus demonstrated of the present invention.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Polygon dynamic demonstration teaching aid of the present invention, comprises some ruler 1.Please refer to shown in Fig. 1 the schematic perspective view of the ruler 1 of a preferred embodiment of the present invention.Every, ruler 1 centre is provided with to groove 11 along its length, three slide blocks 2 are installed in groove 11, each slide block 2 can slide in groove 11.End face 12 at ruler 1 is provided with scale sign 13 along its length near its edge.
Shown in Fig. 2, in two side direction rulers 1 of groove 11, be concaved with step surface 14, gathering sill 15 and end concave surface 16.Step surface 14 is positioned at ruler 1 top, and lower than the end face 12 of ruler 1.End concave surface 16 is positioned at ruler 1 bottom, and lower than the bottom surface 17 of ruler 1.Gathering sill 15 is lower than step surface 14, and away from groove 11.A side at gathering sill 15 is concaved with vertical groove 18 in ruler 1, and in the present embodiment, vertical groove 18 is arranged on the side away from groove 11.The cross section of vertical groove 18 can arrange and be in the shape of the letter V, and the summit of V font indicates 13 with the scale of ruler 1 end face 12 and aligns.The cross section of vertical groove 18 also can arrange and be circular-arc.
In the present invention, having provided 2 two embodiment of slide block,, more together with reference to shown in Fig. 3 and Fig. 4, is please the first embodiment of slide block 2.In the present embodiment, slide block 2 comprises upper holder block 21 and the lower lock block 22 of mutual fastening, and magnetic conduction buckling piece 23 and magnetic piece 24.Magnetic conduction buckling piece 23 is arranged on the end face of slide block 2, and magnetic piece 24 is arranged on slide block 2 bottom surfaces, and magnetic conduction buckling piece 23 can snap together upper holder block 21, lower lock block 22 and magnetic piece 24.Upper holder block 21 is arranged on the step surface 14 and gathering sill 15 of groove 11 both sides, and can in gathering sill 15, be free to slide.Lower lock block 22 is arranged in the end concave surface 16 of groove 11 both sides, and can on end concave surface 16, be free to slide.In the present embodiment, the lower lock block 22 in slide block 2 bottoms exceeds the bottom surface 17 of ruler 1, and the magnetic conduction buckling piece 23 in slide block 2 end faces is lower than the end face 12 of ruler 1.
Centre position at lower lock block 22 end faces convexes with inserting column 25, and inserting column 25 is connected in series upper holder block 21 and magnetic conduction buckling pieces 23, and exceeds the end face of magnetic conduction buckling piece 23.In the bottom of inserting column 25, be concaved with sleeve joint hole 26, inserting column 25 can match with the sleeve joint hole 26 of another ruler 1 slide block 2, and the slide block 2 of upper and lower two rulers 1 can be stacked together.And, above the magnetic piece 24 of slide block 2 bottoms of that ruler 1 can by magnetic absorption effect, also be stacked together with the magnetic conduction buckling piece 23 of the slide block 2 of that ruler 1 below, further increase fastness and the stability of slide block 2 junctions of two rulers 1.
In the bottom surface of upper holder block 21, convex with guiding rib 27, guiding rib 27 can match with gathering sill 15, and can in gathering sill 15, be free to slide.Two sides 211 at upper holder block 21 are concaved with respectively decorative pearl on top of an official cap hole 212, the decorative pearl on top of an official cap 29 that spring 28 and an end face are bulb shape is installed successively in decorative pearl on top of an official cap hole 212, the decorative pearl on top of an official cap 29 can be in the interior slip in decorative pearl on top of an official cap hole 212, the bulb of the decorative pearl on top of an official cap 29 can exceed the side 211 of upper holder block 21, and can only touch on vertical groove 18 surfaces.
When slide block 2 slides when the scale of ruler 1 indicates other position beyond 13, the bulb of the decorative pearl on top of an official cap 29 is retracted in decorative pearl on top of an official cap hole 212 after being directed to the side extruding of groove 15.When the scale that slides into ruler 1 when slide block 2 indicates 13 position, the decorative pearl on top of an official cap 29 reset of upspringing under the pressure-acting of spring 28, the bulb of the decorative pearl on top of an official cap 29 resets and stretches out, and only contacts vertical groove 18 surfaces.Slide block 2 is free to slide in gathering sill 15, and when sliding into scale and indicate 13 position, the decorative pearl on top of an official cap 29 is just from the interior reset in decorative pearl on top of an official cap hole 212, and vertical groove 18 surfaces of conflicting, and sends " click clatter " sound to point out.
, more together with reference to shown in Fig. 5 and Fig. 7, be please the second embodiment of slide block 2'.In the present embodiment, slide block 2' comprises upper holder block 21' and the lower lock block 22' of mutual fastening.Centre position at lower lock block 22' end face convexes with inserting column 25', and the end of inserting column 25' is provided with connected structure, and connected structure is the annular groove 23' that is arranged on inserting column end.In the bottom of inserting column 25', be concaved with sleeve joint hole 26', inserting column 25' can match with the sleeve joint hole 26' of another ruler 1 slide block 2', and the slide block 2' of upper and lower two rulers 1 can be stacked together.In sleeve joint hole 26', be provided with the socket join structure 24' that can cooperatively interact with connected structure.
Socket join structure 24' comprises two fixture block 241' and fastener 242', and two fixture block 241' are separately positioned on the both sides of sleeve joint hole 26', is provided with the chute 221' that fixture block 241' is installed on lower lock block 22', and fixture block 241' can slide in chute 221'.The spacing of two fixture block 241' front end 243' is not more than the external diameter of inserting column 25', and two fixture block 241' can be connected in the annular groove 23' of inserting column 25' of slide block 2' of another ruler 1.For the ease of stack and the dismounting of the slide block 2' of two rulers 1, the front end 243' of fixture block 241' can be arranged to circular-arc, is convenient to like this inserting column 25' and is inserted in annular groove 23', is also convenient to inserting column 25' from pull-off in annular groove 23' out.
Fastener 242' is socketed on inserting column 25', fastener 242' dual-side is respectively equipped with two catch 244', two catch 244' are only against respectively the tail end 245' of two fixture block 241', and catch 244' can swing in the cavity volume 222' of upper holder block 21' and lower lock block 22' assembling formation.In the time of in inserting column 25' is inserted into annular groove 23', inserting column 25' can strut two fixture block 241', and two fixture block 241' are outwards removed respectively, drives catch 244' to swing.After inserting column 25' inserts and puts in place, two fixture block 241' are connected in annular groove 23', and catch 244' resilience restores to the original state.
In the present embodiment, the fit structure of slide block 2' and ruler 1, is included in slide construction in groove 11 and is arranged on the decorative pearl on top of an official cap structure of lower lock block 22' identical with last embodiment, does not repeat them here.
In order to increase demonstration effect of the present invention, of the present invention be often also furnished with ruler 1 protractor 3 that a slice surface is provided with angle index.At the center of protractor 3, be provided with circular hole 31, circular hole 31 can be sleeved on inserting column 25, can facilitate protractor 3 is sleeved on the inserting column 25 of slide block 2.In the present embodiment, protractor 3 is made by transparent material, and ruler 1 can be also to be made by transparent material, can see intuitively the angle number of degrees between the ruler 1 after combination.
In the present embodiment, polygon demonstration realia comprises six rulers 1 and six protractors 3, every being provided with three slide blocks 2 on ruler 1.Three above rulers 1 can be by the various patterns conventional in several teaching that are superimposed to form of slide block 2.
Ruler 1 is concatenated into linearity, can do and lengthen rule use.
Three rulers 1 can be assembled into the various triangles in several teaching by the slide block 2 on ruler 1, can demonstrate leg-of-mutton stability, and angle that can demonstration of parallelism line is complementary, etc.The present embodiment provides wherein a kind of combined demonstration figure of arbitrary triangle, please refer to Fig. 5.
Four rulers 1 can be assembled into the various quadrilaterals in several teaching by some slide blocks 2, can demonstrate tetragonal instability, can demonstrate leg-of-mutton neutrality line, can demonstrate leg-of-mutton angular bisector, can demonstrate leg-of-mutton vertical line, can demonstrate triangle similar, etc.The present embodiment provides the wherein similar combined demonstration figure of a kind of triangle, please refer to Fig. 6.
Five rulers 1 can be assembled into the various pentagons in several teaching by some slide blocks 2, can demonstrate trapezoidal neutrality line, etc.The present embodiment provides wherein a kind of combined demonstration figure of trapezoidal neutrality line, please refer to Fig. 7.
Six rulers 1 can be assembled into the various hexagons in several teaching by some slide blocks 2, can demonstrate the diagonal line of rhombus, can demonstrate triangle core, can demonstrate leg-of-mutton orthocenter, etc.The present embodiment provides wherein a kind of cornerwise combined demonstration figure of rhombus, please refer to Fig. 8.
Because be generally demonstrates on the blackboard of holding up, so, demonstrator must live in to state teaching aid with hand steered, prevent that it from falling because of deadweight, the present invention has done an improvement for this reason, in the bottom surface of ruler 1, be provided with some magnetic magnetites 4 (as shown in Figure 1), magnetite 4 is installed and is adhesively fixed in the counterbore (not shown) near ruler 1 both ends.When the present invention demonstrates on blackboard made of iron, magnetite 4 can be adsorbed on ruler 1 on blackboard and can not fall because of deadweight, without living with hand steered, to demonstrator, provides convenience.
The simple combination of the present invention by ruler and connector also demonstrated various geometric figures, can cultivate better student and beat one's brains, starts, associates analogy and observation ability, excites the geometric interest of Students ' Learning.By the conversion of Presentation Graphics, also can contact and the education of motion viewpoint student, cultivate students ' analysis problem and problem-solving ability.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a polygon dynamic demonstration teaching aid, comprise some rulers, in the middle of each ruler, be provided with along its length groove, some slide blocks are installed in described groove, described slide block can slide in described groove, it is characterized in that, in described slider top, be provided with inserting column, at described slider bottom, be provided with the sleeve joint hole that can match with described inserting column, described ruler can be stacked up and down, its slide block can be vertically stacked together mutually, thus make some described ruler can be combined into various polygon-shaped.
2. polygon dynamic demonstration teaching aid according to claim 1, it is characterized in that, both sides at described groove are concaved with step surface, gathering sill and end concave surface respectively in described ruler, described step surface is lower than the end face of described ruler, concave surface of the described end is lower than the bottom surface of described ruler, and described gathering sill is lower than described step surface and away from described groove; A side at described gathering sill is concaved with some vertical grooves in described ruler.
3. polygon dynamic demonstration teaching aid according to claim 2, it is characterized in that, described slide block also comprises upper holder block and the lower lock block that can mutually fasten, described upper holder block is arranged on the step surface and gathering sill of described groove both sides, and can in described gathering sill, slide, described lower lock block is arranged in the end concave surface of described groove both sides, and can on concave surface of the described end, slide; Bottom surface at described upper holder block convexes with guiding rib, and described guiding rib matches with gathering sill.
4. polygon dynamic demonstration teaching aid according to claim 3, it is characterized in that, two sides at described upper holder block are concaved with respectively decorative pearl on top of an official cap hole, the decorative pearl on top of an official cap that spring and an end face are bulb shape is installed successively in described decorative pearl on top of an official cap hole, the described decorative pearl on top of an official cap can slide in described decorative pearl on top of an official cap hole, the bulb of the described decorative pearl on top of an official cap can exceed the side of described upper holder block, and can only touch on described vertical rooved face.
5. polygon dynamic demonstration teaching aid according to claim 4, it is characterized in that, at described slide block end face, be provided with magnetic conduction buckling piece, in described slide block bottom surface, be provided with magnetic piece, by described magnetic conduction buckling piece, the slide block of different described rulers can be vertically stacked together mutually from the magnetic absorption effect of magnetic piece; Described magnetic conduction buckling piece can snap together described upper holder block, lower lock block and magnetic piece.
6. polygon dynamic demonstration teaching aid according to claim 5, is characterized in that, described inserting column is convexly equipped with in the centre position of described lower lock block end face, and described inserting column is connected in series described upper holder block and magnetic conduction buckling piece, and exceeds the end face of described magnetic conduction buckling piece; Described sleeve joint hole is arranged on the bottom of described lower lock block, and is positioned at the below of described inserting column, and described sleeve joint hole can match with the inserting column of ruler slide block described in another.
7. polygon dynamic demonstration teaching aid according to claim 4, is characterized in that, the end of described inserting column is provided with connected structure, is provided with the socket join structure that can cooperatively interact with described connected structure in described sleeve joint hole.
8. polygon dynamic demonstration teaching aid according to claim 7, is characterized in that, described connected structure is the annular groove that is arranged on described inserting column end; Described socket join structure comprises two fixture blocks and fastener, and two described fixture blocks are separately positioned on the both sides of described sleeve joint hole, is provided with the chute that described fixture block is installed on described lower lock block, and described fixture block can slide in described chute; The spacing of two described fixture block front ends is not more than the external diameter of described inserting column, and two described fixture blocks can be connected in the inserting column annular groove of slide block of another described ruler.
9. polygon dynamic demonstration teaching aid according to claim 8, it is characterized in that, described fastener is socketed on described inserting column, described fastener dual-side is respectively equipped with two catch, two described catch are only against respectively the tail end of two described fixture blocks, and described catch can swing in the cavity volume of described upper holder block and lower lock block assembling formation.
10. polygon dynamic demonstration teaching aid according to claim 1, it is characterized in that, described polygon dynamic demonstration teaching aid is also furnished with the protractor that surface is provided with angle index, at the center of described protractor, is provided with circular hole, and described circular hole can be sleeved on described inserting column.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047552.3A CN103093668B (en) | 2013-02-06 | 2013-02-06 | Polygonal dynamic demonstration teaching aid |
| PCT/CN2014/071295 WO2014121698A1 (en) | 2013-02-06 | 2014-01-23 | Polygonal dynamic demonstration teaching aid |
| SG11201508257SA SG11201508257SA (en) | 2013-02-06 | 2014-01-23 | Polygonal dynamic demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047552.3A CN103093668B (en) | 2013-02-06 | 2013-02-06 | Polygonal dynamic demonstration teaching aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103093668A CN103093668A (en) | 2013-05-08 |
| CN103093668B true CN103093668B (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310047552.3A Active CN103093668B (en) | 2013-02-06 | 2013-02-06 | Polygonal dynamic demonstration teaching aid |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103093668B (en) |
| SG (1) | SG11201508257SA (en) |
| WO (1) | WO2014121698A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093668B (en) * | 2013-02-06 | 2014-12-17 | 胡书华 | Polygonal dynamic demonstration teaching aid |
| CN104122934B (en) * | 2014-07-15 | 2016-06-22 | 北京航空航天大学 | A kind of adjustable stabilized platform position-limit mechanism of attitude scope |
| CN106448357A (en) * | 2016-12-07 | 2017-02-22 | 泸县奇峰镇学校 | Device for mathematics teaching |
| CN106781887A (en) * | 2017-02-04 | 2017-05-31 | 邓启民 | A kind of teaching planar pattern demonstration device |
| CN106997706A (en) * | 2017-04-28 | 2017-08-01 | 王辰飞 | A kind of mathematical modeling teaching aid |
| DK179936B1 (en) | 2018-03-12 | 2019-10-14 | Angle.Design ApS | Tool for Assisting the Process of Marking or Cutting |
| CN114013203A (en) * | 2021-11-09 | 2022-02-08 | 临澧县职业中专学校 | Mathematics plane drawing is with supplementary teaching aid based on grafting cooperation |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079784U (en) * | 1990-04-10 | 1991-06-26 | 包盛如 | Dolygon teaching aid |
| CN2083777U (en) * | 1991-01-28 | 1991-08-28 | 周祚伯 | Moveable polygon model |
| US5438761A (en) * | 1993-09-16 | 1995-08-08 | Krumszyn; Luba M. | Rotatable carpenter's level |
| CN2252375Y (en) * | 1995-12-18 | 1997-04-16 | 唐剑英 | Multifunction geometry teaching aid |
| CN2282989Y (en) * | 1997-02-24 | 1998-06-03 | 李正雄 | Rule for basic mathematics |
| CN2353006Y (en) * | 1998-12-28 | 1999-12-08 | 刘培忠 | Adjustable multi-purpose for rod ruler |
| CN2676737Y (en) * | 2004-02-27 | 2005-02-09 | 廖志中 | Multifunctin assembling frame structure |
| CN2826569Y (en) * | 2005-08-27 | 2006-10-11 | 秦英超 | Geometrical figure demonstration ruler |
| CN2935325Y (en) * | 2006-05-19 | 2007-08-15 | 唐瑞 | Straight polygon demonstration realia |
| KR100763415B1 (en) * | 2006-10-19 | 2007-10-04 | 곽영문 | A compass and protractor combine use linear type rule |
| CN201077281Y (en) * | 2007-08-14 | 2008-06-25 | 李正雄 | Multifunctional combined mathematics ruler |
| CN201143850Y (en) * | 2007-10-25 | 2008-11-05 | 邢台职业技术学院 | Multifunctional folding ruler |
| CN201556321U (en) * | 2009-11-13 | 2010-08-18 | 徐军华 | Novel triangular teaching aid |
| CN201715979U (en) * | 2010-06-23 | 2011-01-19 | 李建平 | Portable measuring instrument |
| US8250771B2 (en) * | 2010-10-25 | 2012-08-28 | Frank Pinal | Multifunctional ruler and protractor set with ability to form and scale a near infinite number of geometric shapes |
| US20130291392A1 (en) * | 2011-01-18 | 2013-11-07 | R.K. Swamy | Multipurpose instrument for triangle solutions, measurements and geometrical applications called triometer |
| CN202331984U (en) * | 2011-11-18 | 2012-07-11 | 郭文 | Demonstrator of common mathematical patterns |
| CN202720801U (en) * | 2012-02-15 | 2013-02-06 | 胡书华 | Polygonal demonstration teaching aid |
| CN102810275A (en) * | 2012-07-09 | 2012-12-05 | 童志强 | Plane geometric figure demonstrating instrument |
| CN103093668B (en) * | 2013-02-06 | 2014-12-17 | 胡书华 | Polygonal dynamic demonstration teaching aid |
| CN203217832U (en) * | 2013-02-06 | 2013-09-25 | 胡书华 | Polygon dynamic demonstration teaching aid |
-
2013
- 2013-02-06 CN CN201310047552.3A patent/CN103093668B/en active Active
-
2014
- 2014-01-23 WO PCT/CN2014/071295 patent/WO2014121698A1/en active Application Filing
- 2014-01-23 SG SG11201508257SA patent/SG11201508257SA/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN103093668A (en) | 2013-05-08 |
| SG11201508257SA (en) | 2016-01-28 |
| WO2014121698A1 (en) | 2014-08-14 |
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