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在高三立体几何复习教学中,有一位学生(理科)问笔者这样一个问题:用坐标向量法不容易解决(不易建系)的立体几何题,那该怎么办?这引起了笔者的深思,如何提高立体几何求解方法的多样性、灵活性与变通性,从而提升破解立体几何问题的技术能力与策略水平是摆在我们面前一个必须着力解决的现实问题。本文笔者尝试用非坐标形式的向
In the high school three-dimensional geometry review teaching, there is a student (science) asked the author of such a question: the use of coordinate vector method is not easy to solve (not easy to build system) of the three-dimensional geometry, then how to do? This caused the author’s pondering, how To improve the diversity, flexibility and adaptability of the three-dimensional geometric solution method, the technical capability and tactics level of solving the three-dimensional geometric problem are the realistic problems that must be tackled before us. In this paper, I try to use non-coordinate form of the