This week in Geometry we will be using a compass and straightedge to perform the six basic constructions:
1) Copying a line segment
2) Copying an angle
3) Creating a perpendicular bisector
4) Creating an angle bisector
5) Creating parallel lines
6) Creating a perpendicular line through a given point
When creating a perfect construction no numbers are involved. We do not measure, but rather we mark off distance by creating arcs (or congruent circles) using a compass.
There are many videos on you tube that demonstrate each construction.
For an animated tutorial: Click here or go to http://www.mathsisfun.com/geometry/constructions.html