CN203217267U

CN203217267U - Double-purpose teaching tool

Info

Publication number: CN203217267U
Application number: CN 201320265160
Authority: CN
Inventors: 朱思敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-16
Filing date: 2013-05-16
Publication date: 2013-09-25
Anticipated expiration: 2023-05-16

Abstract

The utility model discloses a double-purpose teaching tool. The double-purpose teaching tool comprises a clock body, an upper protractor, a lower protractor, a screw, a nut, a clock face and pointers, wherein the clock body, the upper protractor and the lower protractor are connected with through the nut and the screw and are fixed together, the clock face is fixed on the clock body through embedding, and the pointers are connected on the screw through arranging holes at an end head. Through use of the screw and the nut, a clock and the protractors are combined together, so teaching demonstration of angle understanding and clock understanding in primary school mathematics can be realized simultaneously.

Description

Dual-purpose teaching aid

Technical field

The utility model designs a kind of dual-purpose teaching aid.

Background technology

Clock is articles for daily use, and people can use every day.Convenient for timing, clock miscellaneous has appearred on the market, because the importance of understanding clock is more and more stronger, the clock that primary school teaching is used has also appearred on the market; Protractor is study article, has pupil's family all can have protractor.In order to take measurement of an angle, protractor has appearred on the market, and range is generally 180 °.But, concerning the primary school mathematics teacher, usually need to be with clock and protractor simultaneously in the time of on class, moreover the protractor stature is less, lose the back and be difficult for seeking, brought inconvenience to teaching.

Summary of the invention

The purpose of this utility model provides a kind of dual-purpose teaching aid more portable, more multipotency.

Dual-purpose teaching aid of the present utility model comprises clock body, last protractor, following protractor, screw rod, nut, clock face and pointer.Clock body, last protractor are connected with nut by screw rod with following protractor and are fixed together; Clock face is fixed on one's body the clock by inlaying; Pointer is connected on the screw rod by the termination perforate.

Adopt such structure, clock device and protractor are combined dexterously, can realize the teaching demonstration of " understanding at angle " and " understanding of clock face " in the primary school mathematics simultaneously.

Description of drawings

Fig. 1 is the dual-purpose teaching aid structural representation of the utility model embodiment.

Fig. 2 is the use constitutional diagram of Fig. 1.

Embodiment

The explanation of mark among Fig. 1: clock body 1, last protractor 2, following protractor 3, screw rod 4, nut 5.

The explanation of mark among Fig. 2: clock face 6, pointer 7.

Dual-purpose teaching aid shown in Figure 1 is made up of clock body 1, last protractor 2, following protractor 3, screw rod 4 and nut 5, and clock body 1, last protractor 2 are connected with nut 5 by screw rod 4 with following protractor 3 and are fixed together.

Dual-purpose teaching aid shown in Figure 2 is made up of clock face 6 and pointer 7, and clock face 6 is fixed on the clock body 1 by inlaying, and pointer 7 is connected on the screw rod 4 by the termination perforate.

During use, earlier clock face 6 is embedded on the clock body 1, then by screw rod 4 with clock body 1, go up protractor 2, protractor 3 and pointer 7 link together down, and are fixed on the termination of screw rod 4 with nut 5.During " understanding at angle " teaching demonstration, forward dual-purpose teaching aid to protractor 2 sides, following protractor 3 is motionless, and protractor in the rotation can help the student to understand right angle, acute angle, obtuse angle, the straight angle, round angle isogonism visually; During the teaching demonstration of " understanding of clock face ", forward dual-purpose teaching aid to clock face 6 sides, according to the scale on pointer 7 and the clock face 6, can help the student to understand reading of time visually, offer convenience to Faculty and Students.

Claims

1. a dual-purpose teaching aid comprises clock body, last protractor, following protractor, screw rod, nut, clock face and pointer, and clock body, last protractor are connected with nut by screw rod with following protractor and are fixed together; Clock face is fixed on one's body the clock by inlaying; Pointer is connected on the screw rod by the termination perforate.