①教师备课不仅要研究为何教,重点应该研究引导学生为何 学,要以“导”代“灌”。②科学地安排课堂教学时间,是改革课堂教学的一个中心问题。有教学经验的教师,在课堂上一般的讲解只占用10分或15钟,至多不超过20分钟,留下一半或三分之二的课时让学生支配。③重点或难点的习题作业,尽量在课内完成。在教师的指导下,学生不仅要会作,还要求作得对,作得快。课外尽量少留或不留家庭作业, ① teachers prepare lessons not only to study why the focus should be to guide students learn why, to “guide” on behalf of “irrigation.” ②Scientific arrangement of classroom teaching time is a central issue in the reform of classroom teaching. Teachers with teaching experience generally spend only 10 minutes or 15 minutes in class, up to no more than 20 minutes, leaving half or two thirds of the class for students to dominate. ③ focus or difficult exercises, as far as possible within the class. Under the guidance of teachers, students not only need to be able to work but also demand to be right and make fast. Try to stay or do not leave homework after class,