生活中低成本、唾手可得的生活中教具(如扑克、小刀、火柴、铅笔等),是许多媒体无法取代的,它能促进学生展开想象和思考的翅膀,教具的形象性、直观性有其独到的优点,它的亲和力,师生之间的互动性及学生合作关系都是不可低估,值得大力提倡和开发。 Living in low-cost, readily available teaching aids (such as poker, knives, matches, pencils, etc.), many media can not be replaced, it can promote students to develop imagination and thinking of the wings, teaching aids unique, intuitive and unique Its merits, its affinity, the interaction between teachers and students, and the cooperative relationship between students are not to be underestimated, it is worth vigorously promoting and developing.