Videos are listed chronologically by date added, beginning with the most recent
Naming and Measuring Angles
Key concepts of angles are introduced such as defining and writing information about an angle, mathematical notation for rays, line segments and lines. Other topics introduced include obtuse angles, acute angles and congruent angles.
A teen girl creates a mobile to hang above a baby's crib by using the following: bisecting an angle, perpendicular bisector of a line, construct a triangle, determine the centre of gravity, determine the inscribed circle of a triangle and determine the circumcircle of a triangle.