数轴不仅是研究有理数的重要工具,而且还是今后学习其他知识的基础,不仅如此,有关数轴上的动点问题也随之而来,为方便同学们的学习,及时了解此类问题的求解策略,现归纳,供参考.一、求动点的对应数例1一点A从数轴上表示+2的A点开始连续移动,第一次先向左移动1个单位,再向右移动2个单位;第二次先向左移动3个单位,再向右移动4个单位;第 Not only is the number axis an important tool for studying rational numbers, but also the basis for learning other knowledge in the future. Not only that, the problem of moving points on the number axis also follows. In order to facilitate the students’ learning and keep abreast of strategies for solving such problems, Now, for reference.A, the corresponding number of the first point A point A from the number of points on the axis of that point +2 continuous movement, the first move to the left one unit, and then move to the right two units; The second move to the left the first three units, and then move the right to four units;