爱因斯坦说:“找出一个问题往往比解决一个问题更重要,因为解决问题也许仅仅是一个数字上和实验上的技能而己,而提出新问题,从新的可能性、新的角度去看待旧的问题,却需要创造性的想象力。”问题是探究之本,思维之源。教学实践表明:问题情境是学生发现问题、提出问题的良好的“ Einstein said: “Finding a problem is often more important than solving a problem, because problem solving may be merely a numerical and experimental skill, but new problems should be raised, new possibilities and new perspectives should be taken The old problem, but need creative imagination. ”The problem is the source of inquiry, the source of thinking. Teaching practice shows that: the problem situation is the students found the problem, the question raised a good "