随着数学新课程改革的不断推进,通过开放的预设、宽松的氛围、多维的互动、教师的睿智等策略突破“预设”窠臼,变“预设”为生成,及时捕捉“非预设生成”的智慧火花,实现数学课堂动态生成,让课堂绽放活力,具有现实意义。 With the continuous advancement of new curriculum reform in mathematics, through the open presupposition, relaxed atmosphere, multi-dimensional interaction, teacher’s wisdom and other strategic breakthroughs, “presupposition”, change “presupposition” to generate, capture in time “Non-default generated ” wisdom spark to achieve dynamic generation of mathematics classroom, so that the vitality of the classroom bloom, with practical significance.