CN201961024U

CN201961024U - Set square for mathematics teaching

Info

Publication number: CN201961024U
Application number: CN2011200629250U
Authority: CN
Inventors: 姚玉菊; 张计光; 王敦海
Original assignee: 姚玉菊; 张计光
Priority date: 2011-03-11
Filing date: 2011-03-11
Publication date: 2011-09-07
Anticipated expiration: 2021-03-11

Abstract

The utility model discloses a set square for mathematics teaching, which comprises a set square. A right-angle long edge of the set square is provided with length scales. The middle part of the set square is provided with a round hole. A transparent board is arranged on the round hole. The transparent board is of a circular shape. The circle center of the transparent board is provided with a positioning bolt. The positioning bolt is provided with a pointer. Angle scales in the range of 0 to 360 degrees are marked on the circumference of the round hole. One end of the set square is provided with a circle drawing hole. The set square for mathematics teaching has the advantages that the set square for mathematics teaching can be used for measuring an angle, has diversified functions and high integration and can be used for drawing a triangle, a line segment and a circle in class; the set square for mathematics teaching can also be used for drawing straight lines at various angles with a reference line and a teacher does not need to use a great amount of drawing tools, so that the drawing operation is simplified and the set square for mathematics teaching is conveniently used for mathematics teaching; and the set square for mathematics teaching has simple and reasonable structure, is easy to carry, has low cost and is convenient to use; the set square for mathematics teaching is provided with a mark and the mark is marked with teacher information corresponding to the teaching aid so as to prevent the teaching aid from being used confusedly to be lost.

Description

A kind of mathematical education set square

Technical field

The utility model relates to the teaching aid field, specifically is a kind of mathematical education set square.

Background technology

In mathematical education, the mathematics teacher usually need draw triangle, circle, line segment figures on the classroom, and this needs the mathematics teacher to carry very many drawing instruments, is not suitable for carrying and using.And, when need iso-surface patch becomes the straight line of various angles with line of reference on blackboard, must use the various teaching aids that comprise ruler, compasses, angel measuring instrument etc. simultaneously, drawing process is very complicated, and the part angle can't identify, and is not suitable for on-the-spot writing on the blackboard and uses.

Summary of the invention

The purpose of this utility model is to provide a kind of mathematical education set square, it can solve the deficiency that exists in the known technology, and the integrated level height can be used in and draws triangle, circle, line segment figures on the classroom, and the drafting of carrying out various angle straight lines, be fit to numerous teachers and use.

The utility model for achieving the above object, be achieved through the following technical solutions: a kind of mathematical education set square, comprise set square, long limit, set square right angle is provided with the length scale, opens circular hole at the set square middle part, transparent panel is installed on the circular hole, transparent panel is circular, and the transparent panel circle centre position is installed bolt, and pointer is installed on the bolt, the circular hole circumference is indicated 0～360 degree angle index, and set square one end is provided with the picture circular hole.

Described set square one end is installed and is mounted the hole.

On the described set square label is set.

Advantage of the present utility model is: can take measurement of an angle; Diverse in function, the integrated level height can be drawn triangle, line segment and circle, and can draw the straight line that becomes various angles with line of reference on the classroom, need not the teacher and use a large amount of drawing instruments, simplifies mapping operation, is convenient to mathematical education and uses; Simple for structure reasonable, be easy to carry about with one, cost is low, and is easy to use; Be provided with label, indicate teacher's information of this teaching aid correspondence on the label, prevent that teaching aid from using with and lose.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

Label shown in the accompanying drawing: 1, set square; 2, transparent panel; 3, circular hole; 4, bolt; 5, pointer; 6, angle index; 7, draw circular hole; 8, length scale; 9, mount the hole; 10, label.

The specific embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

A kind of mathematical education set square described in the utility model, agent structure comprises set square 1, and described set square 1 is preferably high strength plastic materials and makes, and its sound construction is in light weight, and use is easy to carry.Long limit, set square 1 right angle is provided with length scale 8.Open circular hole 3 at set square 1 middle part, transparent panel 2 is installed on the circular hole 3, transparent panel 2 is circular, and transparent panel 2 circle centre positions are installed bolt 4, and pointer 5 is installed on the bolt 4, circular hole 3 circumference are indicated 0～360 degree angle index 6, in order to adopt this set square 1 to carry out the picture circle, at set square 1 one ends picture circular hole 7 is set, during use pencil or chalk etc. are inserted in the picture circular hole 7, bolt 4 is pressed at circle centre position, and rotary triangle chi 1 can be realized the picture circle.

In the utility model, preferably install at set square 1 one ends and mount hole 9, the described hole 9 that mounts can make things convenient for the utility model to deposit or carry.

Distinguish the set square of oneself for the ease of every teacher, prevent because teaching aid is used losing of causing with, label 10 preferably is set on set square 1, can indicate this teacher's information on the label 10, both can prevent to use with, also can after lose, the utility model pick up taker and can return in time the utility model according to this information.

Claims

1. mathematical education set square, it is characterized in that: comprise set square (1), long limit, set square (1) right angle is provided with length scale (8), open circular hole (3) at set square (1) middle part, circular hole (3) is gone up transparent panel (2) is installed, and transparent panel (2) is circular, transparent panel (2) circle centre position is installed bolt (4), bolt (4) is gone up pointer (5) is installed, and circular hole (3) circumference is indicated 0～360 degree angle index (6), and set square (1) one end is provided with picture circular hole (7).

2. a kind of mathematical education set square according to claim 1 is characterized in that: set square (1) one end is installed and is mounted hole (9).

3. a kind of mathematical education set square according to claim 1 is characterized in that: label (10) is set on the set square (1).