试论课堂教学中的学生练习周至县第一中学王蕾近年来，化学教学中出现了很多新的教法。纵观各种教法，无一不强调课堂上学生练习的重要性。那么课堂上学生练习到底都有哪些好处呢？课堂上怎样恰当而不失时机地引导学生练习？就这些问题，笔者结合近几年的教学实践，谈自己... On Classroom Teaching Students Practicing Wang Lei, the First Middle School in Zhouzhi County In recent years, there have been many new teaching methods in chemistry teaching. Looking at various teaching methods, all emphasize the importance of student practice in the classroom. What are the benefits of student practice in the classroom? How do you teach students how to practice in a timely manner? With regard to these issues, the author combines his teaching practice in recent years to talk about himself...