《数学课程标准》强调数学教学应从实际出发,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,获得知识,形成技能,发展思维,促使学生在教师指导下生动活泼地、主动地、富有个性的学习.从本质上说,数学活动是一种思维活动,而数学思维活动又集中表现为提出问题和解决问题的过程.因此,从某种意义上说,数学教学设计就是问题的设计.数学教学设计的中心任务就是要设计出一个或一组问题.从而把教学过程组织成为提 Mathematical Curriculum Standards emphasizes that mathematics teaching should proceed from reality and create problem situations that help students to learn independently, and guide students to practice, think, explore, communicate, acquire knowledge, develop skills, develop thinking, and make students vivid under the guidance of teachers Lively, active, personalized learning. In essence, the mathematical activity is a kind of thinking activity, and mathematical thinking activities focus on the process of presenting and solving the problem.Therefore, in a sense, mathematics Teaching design is the design of the problem.Mathematical teaching design is the central task is to design one or a group of problems.Thus the teaching process is organized into a