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近几年的高考数学试题 ,设置了一些数学学科内的综合题 ,它们的新颖性、综合性值得我们重视 .在知识网络交汇点处设计试题是高考命题改革的一个方向 ,以空间图形为背景的轨迹问题正是在这种背景下“闪亮登场”.由于这类题目涵盖的知识点多 ,数学思想和方法考查充分 ,学生求解起
In recent years, the college entrance examination mathematics test questions have set up some comprehensive questions within the mathematics subjects. Their novelty and comprehensiveness deserve our attention. Designing test questions at the intersection of knowledge networks is one direction of the college entrance examination proposition reform, with space graphics as the background. The problem of trajectory is precisely in this context, “bright debut.” Because of this topic covers many knowledge points, mathematics ideas and methods are fully examined, students solve from