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高中物理习题中的求极值问题,由于种类繁多、求解方法多变,一直是学习中的难点。求极值问题不仅考察学生对物理知识的理解和掌握,也考察学生对数学知识的理解应用能力。因此,极值的相关问题是教学中的重点,也是考试中的焦点和热点。笔者在长期教学实践中积累了一些教学经验,在此抛砖引玉。
The problem of seeking the extreme value in high school physics exercises has always been a difficult point in learning due to the variety and variety of solving methods. Seeking the extreme value problem not only examines students ’understanding and mastery of physical knowledge, but also examines students’ understanding and application of mathematical knowledge. Therefore, the extremes of the relevant issues is the focus of teaching, but also the focus of examination and hot spots. The author has accumulated some teaching experience in the long-term teaching practice, in which to start a discussion.