编辑教具索引提高教具使用效率邓泽国（辽宁朝阳市第二师范学校１２２５００）近几年，学校的教学物质条件有了很大改善，教学仪器、设备不断充实到实验室．随着教具种类、数量的增多，使用时就有了一个选择的问题．怎样才能迅速、方便的选择最适合教学需要的教具，做到物... Editing aids index to improve the use of teaching aids Deng Zeguo (second normal school, Chaoyang, Liaoning 122500) In recent years, the teaching material conditions of the school have been greatly improved, and teaching equipment and equipment have been continuously enriched in the laboratory. With the increase in the number and type of teaching aids, there is a question of choice when used. How can we quickly and conveniently choose the teaching aids that are most suitable for teaching needs, so that we can...