Teaching plan of "Space plane and plane position relationship" teaching design

14.4 (1) The positional relationship between the space plane and the plane 1. Teaching content analysis The dihedral angle is a figure that we often see in our daily life. It is the angle, straight line and plane formed by the students who have studied the different lines of the space. After the angle is formed, the angle of the space studied, the dihedral angle further improves the concept of the space angle. Master the knowledge of this lesson, train students to systematically understand the knowledge of straight lines and planes, the cultivation of space imagination, and even innovation The cultivation of abilities is very important.

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