一、源自生活创设情境,调动学生积极性例如七年级(下《)多边形》的教学中,为了让学生了解如何用各种不同的地砖来铺地面,笔者在课堂上进行模拟实验“小屋装修”。让学生利用不同形状的卡片来代替不同形状的瓷砖,进行了分组实验。在实验过程中,学生充分发挥了想象力,不但弄清了? First, from the creation of the situation in life, to mobilize the enthusiasm of students such as the seventh grade (under the “polygon” in the teaching, in order to allow students to understand how to use a variety of different floor tiles to paving the ground, the author in the classroom simulation experiment “cottage decoration” . Allow students to use different shapes of cards to replace different shapes of tiles and conduct grouping experiments. In the course of the experiment, students have fully exerted their imagination, not only to clarify?