弗洛登塔尔说过:“反思是数学思维活动的核心和动力。”笔者谈谈普通高中课程标准实验教科书《北师大版》数学选修2-第一章第一节《归纳推理》教学后的几点思考。归纳推理是合情推理的部分内容,是高中新课程改革的新增内容。合情推理是根据已有的事实和正确的结论(包括定义、公理、定理等)、实验和实践的结果,以及个人的经验和直觉等推测 Florenthal said: “Reflections are the core and motivation of mathematical thinking activities. ” The author talk about ordinary high school curriculum standard experimental textbook “Beijing Normal University Edition” math elective 2 - Chapter I section "inductive reasoning Reflections after teaching. Inductive reasoning is part of the merits reasoning, is the new content of new curriculum reform in high school. Reasonable reasoning is based on existing facts and correct conclusions (including definitions, axioms, theorems, etc.), the results of experiments and practices, as well as personal experience and intuition, etc.