1·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。
2·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。
3·The utility model relates to a teaching aid.
本实用新型涉及一种教具。
4·Fifth, cherish the public affair and stress the hygiene, cherish various kinds of facility equipment in the garden , play with the teaching aid and other apparatus , economy.
爱护公务讲究卫生，爱护园内各种设施设备，玩教具和其它器械，勤俭节约。