习题设计是我们教学过程中不可缺少的一个重要教学环节,面对的高效减负的教育理念,面对着每周四节的初中化学课程设置,初中化学的习题设置是我们当下要解决的首要问题.一、习题设计要精益求精习题设计时之所以要精益求精不仅是为了的减负,更为了高效.到了初三,学生的学习相对更加紧张,一方面学生的学习科目中没有明显的主课和副科之分.另一方面,学生的学习内容的好与 Exercises design is an indispensable teaching process in our teaching an important part of the face of the concept of efficient teaching burden reduction in the face of the fourth week of junior high school chemistry curriculum settings junior high school chemistry exercises is the primary problem we should solve the moment First, the exercises designed to strive for refinement exercises The reason why the design is to strive for excellence not only to reduce the burden, more efficient.To the third day, the students are relatively more intense learning, on the one hand the students did not study the subject of the main course and deputy section On the other hand, students’ learning content is good