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在复习教学中 ,教师有意加强数学学科内综合题的解题训练 ,对于学生创新意识和实践能力的培养 ,对于学生适应高考改革的需要是非常必要的 .笔者仅就“立体几何”与“解析几何”的综合 ,略举几例供参考 .1 以空间图形为背景的轨迹问题例 1 设两异面直线ａ、ｂ成 60°角 ,它们?
In reviewing teaching, teachers are interested in strengthening the problem-solving training of comprehensive problems in mathematics. It is very necessary for students to adapt to the needs of college entrance examination reform for the cultivation of students’ innovative consciousness and practical ability. The author only discusses “three-dimensional geometry” and “analysis”. “Geometry” synthesis, to mention a few examples for reference. 1 trajectory problem with spatial graphics as a background Example 1 Let two different straight lines a, b into 60 ° angle, they?