“在高效课堂改革中,‘效’很重要。这个‘效’,一是指教师指导学生学习的高效率,二是指学生课堂学习的高效益,三是指高效课堂改革带动教育改革所生发的高效能。”只有通过教师指导,学生实现高效率学习,得到了高效益的回报,这样的课堂才实现了真正意义上的高效课堂。导学案是指导学生进行预习的一种方式。它着重培养学生的自学能力,充分体现了学习过程中学生的主体地位;教师则起引导作用,引导学生有目的地进行预 In the efficient classroom reform, the ’effectiveness’ is very important.This ’efficiency’, one refers to the teacher to guide students to learn high efficiency, the other is the high efficiency of students in classroom learning, the third is to promote efficient classroom reform and education reform High performance of hair growth. “” Only through teacher guidance, students achieve efficient learning, get a high return on benefits, such a classroom to achieve a truly efficient classroom. Guiding case is a way to guide students to preview. It focuses on cultivating students’ self-learning ability, fully embodies the dominant position of students in the process of learning; teachers play a guiding role in guiding students to make pre-emptive