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立体几何一直以来作为高考数学的重点考查内容之一,它是培养学生空间想象能力,提升学生逻辑推理能力的有效载体.其中,二面角的求解是立体几何中的难点,也是高考的热点,纵观各届高考数学不难发现,二面角的求解已成为各省高考立体几何的必考点.为此,探讨二面角的基本解法尤为重要.伴随着新课程改革的不断推进,对于二面角的求解,无论是课堂数学,还是课后训练,广大师生往往偏重于向量法的求解,向
Three-dimensional geometry has always been taken as one of the key examinations of mathematics in college entrance examination, which is an effective carrier to cultivate students ’spatial imagination ability and enhance students’ logical reasoning ability, among them, the solution of dihedral angle is the difficulty in the three- Throughout the mathematics of college entrance examination is not difficult to find that the solution of the dihedral corner has become the provincial college entrance examination geometry necessary test points.To explore the basic solution of the dihedral angle is particularly important.With the new curriculum reform continues to advance, Solve the angle, whether it is classroom mathematics, or after-class training, the majority of teachers and students tend to focus on the vector method to solve, to