巧妙的课堂导入，可以形成一种轻松、和谐的气氛，使学生的思维处于活跃、流畅的状态，使他们积极思考，勇于探索。　　一、巧设问题，激趣引入　　以问题引入新课是教学中常用的方法，好的问题，能够给学生以方向，给思维以动力。所谓好的问题，对学生来说不应是常规问题，未 Clever classroom introduction, can form a relaxed and harmonious atmosphere, so that students thinking in an active, fluid state, so that they think actively and have the courage to explore. First, the clever design of the problem, the introduction of interesting to introduce a new lesson is a common method used in teaching, a good question, to give students a direction, to power thinking. The so-called good question, for students should not be a regular problem, not yet