These lessons will involve the students in investigating and understanding:
• Construction 1: Bisector of an angle, using only compass and straight edge
How to bisect an angle with compass and straight edge or ruler - Math Open Reference
• Construction 2: Perpendicular bisector of a line segment, using only compass and straight edge
How to bisect a segment with compass and straight edge or ruler - Math Open Reference
• Construction 3: Line perpendicular to a given line l, passing through a given point not on l.
How to construct (draw) a perpendicular from a line through a point - Math Open Reference
• Construction 4: Line perpendicular to a given line l, passing through a given point on l
How to construct (draw) a perpendicular at a point on a line - Math Open Reference
Khan
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