问题是思维的起点,问题解决的过程就是思维发展的过程,也是创造性思维产生的过程。课堂教学中,有效的设疑解惑,能启迪学生的心智,引导学生去发现、提出、分析、解决问题,完善学生已有的知识结构,形成科学的思维方式,并激起学生强烈的求知欲,激活学生的创造性思维,能培养学生良好的学习习惯和创新意识,提高学生的发展社会问题的意识和提出、分析、解决问题的 The problem is the starting point of thinking, the process of problem solving is the process of thinking development, but also the process of creative thinking. Classroom teaching, effective doubts doubts, can inspire students ’minds, and guide students to discover, propose, analyze and solve problems, improve the existing knowledge structure of students, the formation of a scientific way of thinking, and arouse students’ strong knowledge Desire, activate students’ creative thinking, can cultivate students’ good study habits and sense of innovation, improve students’ consciousness of developing social problems and put forward, analyze and solve problems