solid_geometry_teaching_有道手机词典

1.The fourth part is problem situation created by the Strategies in the senior middle school math Solid Geometry Teaching.
第四部分是高中数学立体几何教学中问题情境创设的策略探索。
dict.yoduao.com
2.Straight line and plane are two basic concepts of geometry; they are also two special difficulties in the teaching of solid geometry in middle schools.
直线与平面是中学立体几何基础理论部分，也是教学中的重点与难点。
dict.yoduao.com