“转化”在数学教学与现实生活中是常见到的一种解决问题的策略与思想,为突显其地位与价值性,苏教版数学教材在六年级下册专门安排了一个学习单元。在充分理解教材编写意图后,我们对单元教学内容从整体上进行了构思,进一步丰富了教与学的素材,并根据教学实际增设了第三课时的教 “Transformation” in mathematics teaching and real life is a common problem-solving strategies and ideas, in order to highlight its status and value, the Sujiao version of mathematics textbooks in the sixth grade specifically arranged a learning unit. After fully comprehending the intent of composing teaching materials, we conceived the unit teaching content as a whole, further enriched the teaching and learning materials and added the teaching of the third class according to the teaching practice