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1·The invention relates to a teaching aid for communication between teacher and students: hand-up device.

本发明涉及一种用于师生之间通信的教具：手动装置。

2·He thinks food is a priceless teaching aid.

他认为食物是无价的教学辅助。

3·The utility model relates to a teaching aid.

本实用新型涉及一种教具。

4·The blackboard is a primitive teaching aid used for centuries.

黑板是一种原始的教学辅助工具，已经被使用了数百年了。

5·The utility model is the suitable teaching aid of a music theory.

该对照尺是一种很好的音乐理论教学用具。

6·The utility model can be produced into a power toy or a teaching aid.

该装置可以制成动力玩具，也可以制成教学用具。

7·The idea to design a math teaching aid came about while Emily was teaching math classes to the students.

当艾米丽给孩子们上数学课时，她突发奇想，设计一套数学教具的想法在她的脑子里应运而生。

8·The geographical school wall map is a most necessary direct sighed teaching aid in the process of middle school.

中学地理教学挂图是中学地理教学过程中一个必不少的直观教具。

9·A self-fabricated teaching aid for cubic stacking is presented. The method of fabricating and demonstrating are reported.

介绍一种简单实用的立方密积形成面心立方结构的教具制作和演示。

10·Tactile teaching aid is the key part of object teaching in schools for the blind and teachers should be aware of the hierarchy of it.

盲校教师在制作、使用触觉教具时，不应受视觉规律的主导。

教具

1·The utility model relates to an intellective magnetic structure lapping combination toy which can be used for an educational assistant teaching aid.

本实用新型涉及一种益智类磁性结构搭接组合玩具，也可用于教学辅助教具。

2·The utility model relates to a teaching aid.

本实用新型涉及一种教具。