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【课前慎思】1.如何能让学生更好地体会“等量代换”思想方法的过程?是不是也可以借助“建模思想”来帮助学生更好地理解和体会呢?在建立等量代换模型的过程中,如何能让学生从被动关注“中间数量”发展到主动关注呢?2.“等量代换”是代数思想方法的基础,通过本节课的学习,应该为学生的后继学习做好哪些准备呢?【课中探索】一、创设情境,认识等量关系1.谜语激趣导入。课件出示谜语“两个盘子左右立,两边不等上下移,两边相等变平衡,你说神奇不神奇”
【Thinking before class】 1. How to make students better understand the “equivalent replacement” method of thinking? Is it right? Can also help with “modeling ideas” to help students better understand and experience it In the process of establishing the equivalent substitution model, how can students be allowed to develop the passive attention from the “intermediate number” to the active concern? 2. The “equivalent substitution” is the basis of the algebraic thinking method, Lesson learning, what should be prepared for the student’s subsequent learning? [Lesson] First, create the situation, understanding the relationship between the amount of 1. ridiculous fun import. Courseware to produce riddles “Two plates around the legislature, ranging from two sides up and down, equal balance on both sides, you say that magic is not magic ”