练习是教学的延伸和发展,是学生掌握知识、形成技能、发展智力、挖掘创新潜能的重要手段。教师要吃透教材,深刻理解编排意图,根据学生知识水平、思维方式、发展潜能的差异,对教材里的习题作适当调合、补充、删减,设计行之有效的练习,使之具有基础性、层次性、多样性、开放性、实践性、实用性,从而适应不同程度学生的需要,让不同的学生得到不同的发展。 Exercises are the extension and development of teaching. It is an important means for students to master knowledge, form skills, develop intelligence and tap innovation potential. Teachers should thoroughly through the teaching materials, deeply understand the intent of layout, according to the differences of students’ knowledge level, mode of thinking and development potential, make appropriate adjustments to the exercises in the textbooks, add, subtract, and design effective exercises so that they have basic characteristics , Level, diversity, openness, practicality, practicality, so as to adapt to the needs of different levels of students, so that different students get different development.