新教材和旧教材的最大区别在于:新教材增加了学生的“观察与猜想”“阅读与思考”“探究与发现”等活动,促进学生对知识的思考、交流、探索、总结。“活动”是教学内容的重要组成部分,其功能已经从复习巩固课堂知识,转为承担新知识的学习与认知行为,这一变革对于学生和教师来说都是很大的挑战。 The biggest difference between the new textbook and the old textbook is that the new textbook adds students ’activities such as “observation and conjecture”, “reading and thinking”, “inquiry and discovery” and other activities to promote students’ thinking, exchange and exploration of knowledge ,to sum up. “Activity ” is an important part of the teaching content. Its function has been changed from consolidating classroom knowledge to undertaking the learning and cognitive behavior of new knowledge. This change poses a great challenge to both students and teachers.