数学问题设计的出发点是要让大多数学生可以解决,并从中积累必要的活动经验.因此,问题设计要充分体现“以生为本”的理念.通过具体案例明确设计的问题,要敢于突破教材编排束缚;要突出数学核心概念;更要体现思维层次.竭力点燃学生思维的火花,激发他们的求知欲望,并有意识地为学生解疑搭桥铺路,落实有效教学. The starting point of the design of mathematical problems is to make most students can solve and accumulate the necessary experience of activity, therefore, the problem design should fully embody the idea of ​​“taking the students as the foundation.” Through concrete cases to clearly design the problems, we must dare Break through the constraints of textbook layout; to highlight the core concepts of mathematics; but also to reflect the level of thinking .Starting to ignite the spark of student thinking, to stimulate their desire for knowledge, and consciously pave the way for students paving the way, the implementation of effective teaching.