一、案例背景数学教学活动过程的数学归纳是建立数学模型的重要环节。课程改革已有多年,广大教师在新课程教学中,改变以教为主的观念,重视让学生进行自主探索,发现数学结论,归纳建立数学模型。但在教学中还存在着归纳对象单一和归纳过 First, the background of the case Mathematical induction of mathematical teaching process is to establish an important part of the mathematical model. Curriculum reform has been for many years, the majority of teachers in the new curriculum teaching, change the concept of teaching as the main focus on allowing students to explore their own, to find mathematical conclusions, inductive mathematical model. However, there is still a single induction of induction and induction in teaching