创设问题情境,是数学教学中常用的一种策略。古人云:“学起于思,思源于疑。”学生探求知识的欲望,往往总是由问题开始,又在解决问题的过程中获得成功的喜悦。问题情境的创设要小而具体、具有启发性,同时还要有适当的难度,与课本内容保持相对一致,不要运用不恰当的比喻,这样不利于学生正确理解概念和准确使用数学语言能力的形成。教师要善于将所要解决的课题寓于学生实际 Creating problem situations is a commonly used strategy in mathematics teaching. The ancients said: “Learning from thinking, from doubt.” Students desire to seek knowledge, often always from the beginning of the problem, but also in the process of solving the problem of the joy of success. The establishment of problem situations should be small and specific, enlightening, and at the same time have the appropriate difficulty, be relatively consistent with the content of the textbooks, and do not use inappropriate metaphors. This is not conducive to the students’ correct understanding of concepts and the accurate use of mathematical language. . Teachers should be good at the subject to be solved in the actual students