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贵刊在2014年第11期刊登了“对一道功能关系试题的三种解法”一文.文中作者对一道功能关系试题分别用了3种方法求解,分别是:以物块运动的整体特点为切入点,利用最大高度与动能的关系解决问题;以题目的问题为切入点,利用反证法解决问题;以物块运动的规律为切入点,利用演绎归纳解决问题.笔者读后受益匪浅!笔者根据学生对此类问题已有的认识,从物块在斜面上运动过程中能量的分配比例为切入点,给出第4
Your issue of “Three Solutions to a Functional Relationship Test” was published in Issue 11 of 2014. In this paper, we use three methods to solve a functional relationship test, which are: the overall characteristics of the block movement As the starting point, the use of the relationship between the maximum height and kinetic energy to solve the problem; the problem as a starting point, the use of the law to solve the problem; the law of block movement as the starting point, the use of deductive deduction to solve the problem. Based on the students’ understanding of such problems, the author starts with the ratio of the energy distribution during the motion of the block on the slope,