思考之一:情景的创设是有效的,但适当的铺垫不可少在教学实践中,我们该不该创设情景,创设怎样的情景,是用情景导入好,还是充分地运用铺垫引入来得自然,或者就选择直接进行教学等等,都应从学生实际出发,都应从具体的 One of the considerations: the creation of the scene is effective, but the proper preparation is essential In teaching practice, we should not create a scene, create what kind of scene, is the introduction of the scene, or the full use of paving the introduction of the natural, or On the choice of direct teaching, etc., should be based on the actual students, should be specific