“以学为中心”的课堂,就是以生为本,以学为主的课堂,是学生通过自主学习、小组合作等学习方式进行问题探究,是教师组织指导,有效引领,高效达标的课堂。苏霍姆林斯基说过:“在人的心灵深处都有一种根深蒂固的需要,就是希望自己是一个发现者、研究者、探索者。”【片断一】引入:初步感知圆师:关于圆,知道了什么?(学生思考后,交流汇报) “Learning-centered ” classroom, is students-oriented, learning-based classroom, students learn through autonomous learning, group cooperation and other ways to explore the problem, is the teacher organization and guidance, effectively lead, and efficient compliance classroom. Sukhomlinski said: “There is a deep-rooted need in the depths of human mind, in the hope that he is a discoverer, researcher, explorer.” : About the circle, what do you know? (After the student thinks, exchange report)