创新是课堂教学的核心 .要培养学生的探索精神和创新精神 ,就要充分究掘学生的想象力 ,大胆猜想、大胆尝试的能力 ,这就要求教师首先必须改变传统教学观念 ,敢于打破传统的教学模式 ,激发学生的各种思维 .所以 ,我们应立足于中学数学实际 ,立足于课堂教学 ,构建课堂教学的新观 Innovation is the core of classroom teaching. To cultivate students’ exploration spirit and innovative spirit, we must fully explore the imagination of students, the ability to boldly conjecture and boldly try. This requires that teachers must first change the traditional teaching concepts and dare to break the tradition. The teaching mode stimulates the students’ various thinking. Therefore, we should base ourselves on the practice of middle school mathematics, based on classroom teaching, and build a new concept of classroom teaching.