把预习引进课内合肥市长二小杨立新课内预习有以下优点：减轻学生的作业负担：将预习引进课堂，免去了新课前学生需完成的预习作业，更不必翻阅各种参考书单纯地找答案，因此有较多时间从事于当天所学知识的巩固，便于从事其他有益身心的活动．另外，从一定意义上说还减轻... Introduce the preview into the class Mayor of Hefei two small Yang Lixin class preview has the following advantages: To reduce the workload of students: the preview into the classroom, eliminating the need to complete the pre-class homework students do not need to read a variety of reference books Therefore, we have more time to work on the consolidation of the knowledge we have learned on that day and to facilitate other activities that are beneficial to our body and mind. In addition, in a certain sense, also reduce ...