《义务教育数学课程标准》(2011版,以下简称“新课标”)要求教师:“从学生实际出发,创设有助于学生自主学习的问题情境,引导学生通过实践、思考、探索、交流等,获得数学的基础知识、基本技能、基本思想、基本活动经验,促使学生主动地、富有成效地学习,不断提高发现问题和提出问题的能力、分析问题和解决问题的能力。”可见,问题情境的设计是数学新课标四基教 The standard of compulsory education mathematics curriculum (2011 version, hereinafter referred to as “new curriculum standard”) requires teachers: "From the students’ actual conditions, create problem situations that help students to learn independently, and guide students through practice, thinking and exploration , Exchange, etc., acquire the basic knowledge of math, basic skills, basic ideas and experience of basic activities, encourage students to actively and effectively study and continuously improve the ability to discover and ask questions, and analyze and solve problems. Can be seen that the design of the problem situation is a new curriculum four mathematics mathematics