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几何是直观逻辑,几何课程是培养学生逻辑思维的良好载体。立体几何中点、线、面之间的位置关系是必考的知识点,学生在点、线、面位置关系的学习中经常性会觉得做题缺乏灵感,不知从何入手去解题。那么教师怎样在教学中帮助学生理清思路,找到做题的入手点呢?从我多年的教学中,发现教师可在以下几点多加注意:一、教会学生运用作图技巧找到做题的灵感,运用求证的结论找到证明的方向如线面平行的证明题。此题型学生大都知道是运用线面平行的判定定理来解决。而线面平行的判定定理,关键在于在
Geometry is intuitive logic. Geometry courses are a good carrier for students’ logical thinking. Three-dimensional geometry of the midpoint, line, the relationship between the surface area is a necessary knowledge of the test points, students in the point, line, surface relationship learning often think doing questions lack of inspiration, I do not know where to start to solve the problem. So how teachers help students to clarify their thinking in teaching to find ways to start? From my years of teaching, we found that teachers can pay more attention to the following points: First, teach students to use the drawing skills to find the inspiration , Using the conclusion of the verification to find the proof of direction such as line parallel proof. Most students of this type of question know that the solution is to use the theorem of line-parallel judgment. The line of parallel judgment theory, the key lies in