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面对北师大编写的数学新教材，我们在教学中有许多困惑。比如，对第一章《丰富的图形世界》，教什么，怎样教，教到什么程度，都是需要深入探讨的课题。有人说，这一章教起来像劳技课，原因是实践操作太多；有人说，这一章教起来像图画课，其丰富的图形五彩缤纷；还有人说，这?
In the face of the new mathematics textbooks written by Beijing Normal University, we have many puzzles in teaching. For example, what is taught, how to teach, and how much to teach in the first chapter of the “rich graphic world” is a subject that needs further discussion. Some people say that this chapter is taught like an acrobatics class. The reason is that there are too many practice operations. Some people say that this chapter is taught like a drawing lesson, and its rich graphics are colorful, and there are people who say that.