《数学课程标准》指出:有效的数学活动不能单纯地依赖模仿和记忆。动手实践、自主探究与合作交流是学生学习数学的重要方式。长期以来,学生的学习以被动接受式为主要特征,存在着较为明显的“四重四忽视”倾向:课堂教学重知识传授,忽视积极主动学习态度的养成和正确价值观的形成 The Mathematics Curriculum Standard states that effective mathematics activities cannot simply rely on imitation and memory. Hands-on practice, independent inquiry and cooperation and communication are important ways for students to learn mathematics. For a long time, students’ learning has been characterized mainly by passive acceptance. There is a clear trend of “fourfold and four neglects”: classroom teaching focuses on imparting knowledge, ignoring the development of positive active learning attitudes and the formation of correct values.