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我市在新课程改革中提出“基础过关,当堂达标”.如今中考化学改为60分,课时的减少,学生更加不重视化学的学习.那么在有限的时间内让学生记住该记住的知识,理解要理解的知识,并能灵活的运用.则提高课堂容量和效率,并适当将学习时间从课内向课外延伸,是当务之急.而有效的课前预习是解决该问题的关键.古人云:凡事预则立,不预则废.预习是学生自己摸索、自己动脑、自己理解的过程,是对文本的整体感知,
The city proposed in the new curriculum reform “basic pass, when the church standard.” Now the senior high school entrance examination chemistry to 60 minutes, reducing class hours, students pay more attention to chemical learning.So for a limited period of time so that students remember the Remembering the knowledge, understanding the knowledge to be understood, and being able to flexibly use it, it is imperative to improve the capacity and efficiency of the classroom and properly extend the learning time from the classroom to the extra-curricular. And effective pre-lesson preparation is the key to solving this problem The ancients said: everything preconceived legislation, without prejudice .Pre - learning is to explore their own own, their own brains, their own understanding of the process, is the overall perception of the text,