2. The core quality of mathematics comes from students' thinking and questioning. Reflection is an important thinking activity, the core and motivation of thinking activity. Good questions are the seeds of students' innovative consciousness. Teachers must attach great importance to whether students can ask questions and ask valuable questions. Teachers should be good at arousing students' interest and arousing students' inner conflicts, so as to guide students to seek the best solution in "mutual debate" and strengthen students' awareness of inquiry in the constant cycle and contradiction of "conflict-balance-re-conflict-rebalancing". Teachers lead students to constantly reflect, think with these questions, constantly explore, chew and aftertaste, and then observe and associate from multiple angles to find more thinking channels. Only in this way can we really improve students' thinking ability and promote their innovative consciousness.