动手、动脑与动口□徐占文沈书贵强调让学生动手、动脑、动口参与知识形成过程的教学，是为了调动全体学生的学习积极性，从每个学生的基础水平和个性差异出发，让不同层次的学生拥有同等参与学习活动的机会，实现有差异发展。数学知识的形成往往要经历感知——表象——概... Hands, brains and mouth □ Xu Zhanwen Shen Shugui Emphasize that the students hands, brains, move to participate in the process of knowledge formation in order to mobilize the enthusiasm of all students learn from each student's basic level and personality differences, so that different levels Students have equal opportunities to participate in learning activities to achieve differentiated development. The formation of mathematical knowledge tend to experience the perception - appearance - ...