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古人云:“凡事预则立,不预则废。”在学习活动中,我们就把这种准备活动称为“预习”。学生的自主学习是新课标的重要要求,“以学生为主体”又是现代教学改革的基本要求。设法激发学生的学习兴趣,使学生成为学习的主体,而预习是实现这一切的第一环。预习既可以使学生了解所学内容的重、难点,清楚自己的困惑所在,又可以使学生面对新知识时有心理准备,减小非智力因素对学生学习新知识的影响。更重要的一点,学生课外预习可以节省了教师课堂讲授浅显易懂知识点的时间,从而把更多学习空间和时间留给学生,激起学生学习数学的兴趣和解决问题的热情。由此可见,预习是初中数学学习重要的第一步。
The ancients said: “Everything is pre-established, and it is not to be abandoned.” In learning activities, we call this preparatory activity a “preparatory study.” Self-study of students is an important requirement of the new curriculum standard. The “student-centered ” is the basic requirement for modern teaching reform. Try to stimulate students’ interest in learning so that students become the main body of learning, and preview is the first step to achieve this. Pre-learning can not only enable students to understand the importance and difficulty of the content they are learning, but also clear their own confusion. It can also enable students to be mentally prepared for new knowledge and reduce the impact of non-intellectual factors on students’ learning of new knowledge. More importantly, students’ extracurricular previews can save teachers time in classroom lectures and easy-to-understand knowledge, thereby leaving more room and time for students to learn, arousing students’ interest in mathematics learning and enthusiasm for problem solving. From this we can see that the preview is an important first step in junior high school mathematics learning.