学校里大规模的听课、评课活动即将举行,我重点准备的是《神奇的水》第一课时教学,主要是认识水的表面张力与毛细现象。虽说本课已作了充分思考与准备,但也有不尽人意之处。主要有以下几点困惑:1.水滴的“成团”问题,暂时找不到很好的范例。教材提示用一元硬币,学生分组活动时比较费时, Large-scale lectures in schools, assessment class activities will be held soon, I focus on the preparation of the “magic water” first class teaching, mainly to understand the surface tension of water and capillarity. Although this lesson has been fully thought and prepared, but there are also unsatisfactory. There are mainly the following confusion: 1. Water droplets “into a group ” problem, temporarily can not find a good example. Teaching tips with a dollar coin, students time-consuming group activities,