课堂巩固练习是学生在形成新知基础上的巩固过程,是对学生掌握情况的一个重要反馈,如何设计练习使枯燥乏味的化学练习变成学生乐于参与的实践活动,是教师要解决的一个重要问题。有的教师总觉得这也要练,那也不能放弃,因此,选来选去就积累成密密麻麻的一大张试卷。例如,个别老师新授内容后,还有 Classroom consolidation is a consolidation of students based on the formation of new knowledge. It is an important feedback to students about how to master the situation. How to design a practice to turn boring chemistry practice into a practical activity in which students are willing to participate is an important issue to be solved by teachers . Some teachers always think that this should practice, it can not give up, so choose to elect to accumulate into a dense test paper. For example, some teachers new content, as well