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要使学生积极主动地探求新知,顺利地获取新知,必须精心铺垫,使学生在知识、思维、方法、情感等方面处于良好的准备状态。在异分母分数加法教学中,我是这样进行铺垫设计的: 一、旧知铺垫,促进迁移。学生的学习实质是运用旧知,不断同化接纳新知的过程。学生认知结构中具备可以固定新知的相关旧知,是促进积极迁移的基本保证。我在把握异分母分数加法与旧有知识的内在联系的基础上,确定
To enable students to actively seek new knowledge, smooth access to new knowledge, we must carefully pave the way, so that students in the knowledge, thinking, methods, emotions and so on in a good state of readiness. In different denominator addition teaching, I was paving the way design: First, the old bedding, to promote migration. Students learn the essence of the use of old knowledge, continuous assimilation of new knowledge process. The students' cognitive structure has the relevant old knowledge that can fix the new knowledge, which is the basic guarantee to promote the positive migration. On the basis of grasping the internal relations between addition of altruism and old knowledge, I decided