“自然科学一刻也不能没有辩证思维”,解题过程也是辩证思维过程,解题教学目的是使学生在审题中学会用联系的而不是孤立的、相对的而不是绝对的、发展的而不是静止的观点分析问题,去粗取精,去伪存真,从而抽象出本 “Natural science cannot be without dialectical thinking at the moment.” The problem-solving process is also a process of dialectical thinking. The goal of problem-solving teaching is to enable students to learn to use links instead of isolation, relative rather than absolute, development, rather than stillness. The point of view is to analyze the problem, to take the rough and to preserve the truth, to abstract the original