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在实际教学中,有相当一部分学生觉得画线段图麻烦,很少有学生在解决问题时会主动画线段图帮助理解题意。所以我们教师在平时的教学中,有责任帮助学生感悟到线段图的奇妙作用,逐步掌握画线段图的方法,从而使学生真正把“画线段图”自觉内化为一种解题策略。
In actual teaching, quite a few students find it troublesome to draw lines and sections, and few students take the initiative to draw line drawings to help understand the questions when solving the problems. Therefore, in normal teaching, our teachers have the responsibility to help students realize the wonderful effect of line drawing and gradually grasp the method of drawing line drawings so that students can actually turn “drawing line drawings” into a problem-solving strategy .