人教A版教师用书说明中指出:在知识形成过程的“关键点”上,在运用数学思想方法产生解决问题策略的“关节点”上,在数学知识之间联系的“连结点”上,在数学问题变式的“发散点”上,在学生思维的“最近发展区”内,…,提出恰当、对学生数学思维有适度启发的问题,引导学生的思考和 In the teacher’s book description of the A-Teacher teaching, it is pointed out that on the “key points” in the process of knowledge formation and on the “connection points” where the mathematical thinking methods produce problem-solving strategies and the connection between mathematical knowledge, In the “Divergence Point” of the mathematical problem variant, in the “recent development zone” of students ’thinking, ... put forward appropriate questions that give students a moderate inspiration in mathematical thinking and guide students’ thinking