CN202806074U  Instructional multifunctional ruler  Google Patents
Instructional multifunctional ruler Download PDFInfo
 Publication number
 CN202806074U CN202806074U CN 201220517086 CN201220517086U CN202806074U CN 202806074 U CN202806074 U CN 202806074U CN 201220517086 CN201220517086 CN 201220517086 CN 201220517086 U CN201220517086 U CN 201220517086U CN 202806074 U CN202806074 U CN 202806074U
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 CN
 China
 Prior art keywords
 protractor
 ruler
 teaching
 isosceles triangle
 instructional
 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
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 230000001154 acute Effects 0.000 description 1
 230000000694 effects Effects 0.000 description 1
Abstract
The utility model discloses an instructional multifunctional ruler, and relates to instructional aids used by college math teachers. When the instructional multifunctional ruler is used in college math teaching, straight lines and angles can be drawn conveniently and quickly, and figures like circles, ellipses and triangles can also be drawn. When calculation is needed in the teaching, the calculation can be simply completed by using a calculator which is arranged on the instructional multifunctional ruler, and convenience is brought to the math teachers in the teaching. A rectangular groove is arranged between a bottom end of an isosceles triangle ruler and a straight side of a protractor, a long edge of the rectangular groove is arranged along the length direction of the straight side of the protractor, the isosceles triangle ruler and the protractor are manufactured into a whole, an isosceles straight triangle hole and an equilateral triangle hole are formed in the protractor, an oval hole and a round hole are formed in the isosceles triangle ruler, and the calculator is fixedly connected with the front face of the isosceles triangle ruler. When used in college math courses, the instructional multifunctional ruler is capable of being used for drawing the figures like the circles, the ellipses, isosceles straight triangles, and equilateral triangles, and calculating conveniently.
Description
Technical field
The utility model relates to the teaching aid that a kind of College Maths teacher uses, particularly a kind of teaching multifunctional ruler.
Background technology
At present, in the mathematical education of university, mathematics teaching aid commonly used has right angle triangle, protractor etc., in use has following problem: 1, when needs are drawn triangle and angle, need to carry simultaneously set square and protractor, be carried and take care of and make troubles; 2, use set square and protractor can only draw the figures such as straight line, acute angle, obtuse angle and right angled triangle, can't draw figures such as circle, ellipse, make troubles to mathematical education; When 3, in teaching, needing to calculate, also need to join in addition calculator, thereby make troubles to mathematical education.
Summary of the invention
The purpose of this utility model provides a kind of teaching multifunctional ruler, use this teaching with multifunctional ruler in College Mathematics Teaching, can draw out easily and fast straight line and angle, and the figures such as circle, ellipse, triangle; When in teaching, needing to calculate, only need utilization to be arranged on this teaching and can finish with the calculator on the multifunctional ruler, teaching provides convenience to math teacher.
Realize abovementioned purpose, the technical scheme that the utility model is taked is:
The teaching multifunctional ruler, described teaching comprises isosceles triangle chi, protractor and calculator with multifunctional ruler, be provided with rectangular slot between the bottom of isosceles triangle chi and the straight sided of protractor, the length direction of the long edge protractor straight sided of rectangular slot is offered, isosceles triangle chi and protractor are made as one, protractor is provided with isosceles right triangle hole and equilateral triangle hole, and the isosceles triangle chi is provided with slotted eye and circular hole, and the front of isosceles triangle chi is fixed with calculator.
The front of described isosceles triangle chi is provided with handle, and handle is along the length direction setting of rectangular slot.
The utility model with respect to the beneficial effect of prior art is:
One, teaching of the present utility model can be drawn out the figures such as circle, ellipse, right angled isosceles triangle, equilateral triangle to ruler easily and fast with multifunctional ruler one, moreover, straight line, oblique line and angle can also be drawn and measure to the utility model easily, and teaching provides convenience to math teacher.
When two, needing to calculate in teaching, only need utilization to be arranged on this teaching and can finish with the calculator on the multifunctional ruler, teaching provides convenience to math teacher.
Description of drawings
Fig. 1 is the top view that multifunctional ruler is used in teaching of the present utility model;
Fig. 2 is the front view of Fig. 1.
Wherein, isosceles triangle chi 1, protractor 2, calculator 3, rectangular slot 4, isosceles right triangle hole 5, equilateral triangle hole 6, slotted eye 7, circular hole 8, handle 9, graduation mark 10.
The specific embodiment
As shown in Figures 1 and 2, the teaching multifunctional ruler, described teaching comprises isosceles triangle chi 1 with multifunctional ruler, protractor 2 and calculator 3, be provided with rectangular slot 4 between the straight sided of the bottom of isosceles triangle chi 1 and protractor 2, the length direction of long edge protractor 2 straight sided of rectangular slot 4 is offered, be convenient to centering when drawing angle, isosceles triangle chi 1 and protractor 2 are made as one, protractor 2 is provided with isosceles right triangle hole 5 and equilateral triangle hole 6, isosceles triangle chi 1 is provided with slotted eye 7 and circular hole 8, and the front of isosceles triangle chi 1 is fixed with calculator 3; The front of described isosceles triangle chi 1 is provided with handle 9, and handle 9 is along the length direction setting of rectangular slot 4.The place of keeping to the side, front of the place of keeping to the side, front of isosceles triangle chi 1 and protractor 2 is provided with respectively graduation mark 10.
Utilize isosceles right triangle hole 5, equilateral triangle hole 6, slotted eye 7 and circular hole 8 can draw out isosceles right triangle, equilateral triangle, ellipse and circle; Utilize isosceles triangle chi 1 can draw isosceles triangle and straight line.
Claims (2)
1. teaching multifunctional ruler, it is characterized in that: described teaching comprises isosceles triangle chi (1) with multifunctional ruler, protractor (2) and calculator (3), be provided with rectangular slot (4) between the straight sided of the bottom of isosceles triangle chi (1) and protractor (2), the length direction of long edge protractor (2) straight sided of rectangular slot (4) is offered, isosceles triangle chi (1) and protractor (2) are made as one, protractor (2) is provided with isosceles right triangle hole (5) and equilateral triangle hole (6), isosceles triangle chi (1) is provided with slotted eye (7) and circular hole (8), and the front of isosceles triangle chi (1) is fixed with calculator (3).
2. teaching multifunctional ruler as claimed in claim 1, it is characterized in that: the front of described isosceles triangle chi (1) is provided with handle (9), and handle (9) is along the length direction setting of rectangular slot (4).
Priority Applications (1)
Application Number  Priority Date  Filing Date  Title 

CN 201220517086 CN202806074U (en)  20121010  20121010  Instructional multifunctional ruler 
Applications Claiming Priority (1)
Application Number  Priority Date  Filing Date  Title 

CN 201220517086 CN202806074U (en)  20121010  20121010  Instructional multifunctional ruler 
Publications (1)
Publication Number  Publication Date 

CN202806074U true CN202806074U (en)  20130320 
Family
ID=47865010
Family Applications (1)
Application Number  Title  Priority Date  Filing Date 

CN 201220517086 Expired  Fee Related CN202806074U (en)  20121010  20121010  Instructional multifunctional ruler 
Country Status (1)
Country  Link 

CN (1)  CN202806074U (en) 

2012
 20121010 CN CN 201220517086 patent/CN202806074U/en not_active Expired  Fee Related
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Legal Events
Date  Code  Title  Description 

C14  Grant of patent or utility model  
GR01  Patent grant  
EE01  Entry into force of recordation of patent licensing contract 
Assignee: Harbin Yuanda Communication Technology Service Co., Ltd. Assignor: Tian Yuping Contract record no.: 2013230001227 Denomination of utility model: Multifunctional ruler for teaching Granted publication date: 20130320 License type: Exclusive License Record date: 20130703 

LICC  Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model  
C17  Cessation of patent right  
CF01  Termination of patent right due to nonpayment of annual fee 
Granted publication date: 20130320 Termination date: 20131010 