新课程实施以来,数学课堂教学中普遍存在表演化、程序化、功利化、肤浅化等倾向,表面上像启发,实际上是灌输,大部分学生还处于被动接受的地位,思考力却明显下降,数学的思维之美并没有在教学过程中真正体现出来,其结果必然导致学生的解题能力没有得到真正的提高。从总体上看,其实质是有效的课堂教学模式还远没有真正建立起来,而所有问题的关键在于教师没有正确处理好教学中预设与生成之间的关系。 Since the implementation of the new curriculum, mathematics classroom teaching has tendencies of performing, programming, utilitarian and superficiality. On the surface, it is actually an inculcation. Most students are still in a passive position and their thinking power drops significantly , The beauty of mathematical thinking has not really reflected in the teaching process, the result will inevitably lead to students’ ability to solve problems has not been really improved. Generally speaking, the essence of effective classroom teaching is still far from being established. The crux of all problems is that teachers do not properly handle the relationship between presupposition and generation in teaching.