teaching aids

常见例句

She used slides as a teaching aid.
她用幻灯片作教学工具。
Photographs make useful teaching aids.
照片是有用的教具。
The CD-ROM is easy to use directly as a teaching aid in classroom.
在课室直接使用光碟作教材是否容易?
Except blackboard and chalk, unbrella is their needed teaching aid.
除了黑板和粉笔,雨伞成为必备的教具。
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。
These exhibits are part teaching aids, part models and even part experiments.
这些展览分为教学方法，模型，甚至是试验。