九年义务教育三年制初二物理新教科书在2001年秋季开始使用了,新教科书(教材)除保留了原教科书的优点外,在内容编写上更适应于学生的学习,特别是在习题(练习题)编排上,进行了较大的增减和改动,真正减掉了难、繁、偏、旧的习题,增加了大量的学生社会实践活动,适应中学生的认知水平和心理发展特点,并有利于对青少年进行素质教育。一、为什么要对教科书中的练习题进行修改 The new three-year compulsory education second-year physics textbook for the nine-year compulsory education began to be used in the fall of 2001. Apart from retaining the advantages of the original textbook, the new textbooks (textbooks) are more suitable for student learning in content preparation, especially in the exercises ( Exercises) On the arrangement, a large number of changes were made and changes were made. The difficult, complicated, partial, and old exercises were actually subtracted, and a large number of student social practice activities were added to suit the middle school students’ cognitive level and psychological development characteristics. And it is conducive to quality education for young people. I. Why am I to modify the exercises in textbooks?