Youtube Videos:
Points, Lines and Planes
Line, Segments and Rays or this Segments and Rays
Introduction to Angles or Measuring Angles or Measuring and Naming Angles
Midpoints and Distance Formulas or Distance Formula or Midpoint Formula
Parallel and Skew Lines
Introduction to Geometers Sketchpad
Circles: Radius, Diameter and Circumference
Area of a Circle
Area and Perimeter
