Ruler-and-compass constructions Whiteboard presentation Play

Symmetry and congruency Class activity Play

Symmetry and congruency Whiteboard presentation Play

The angles of an isosceles triangle Whiteboard exercise Play

The angles of isosceles triangles Student activity Play

The correctness of a construction Animation Play

The correctness of a construction Student activity Play

The distance formula – applications Student activity Play

The height of a tree Whiteboard exercise Play

The isosceles triangle Whiteboard exercise Play

The sides of isosceles triangles Student activity Play

The symmetry of isosceles triangles Animation Play

Trapeziums Student activity Play

Triangles – part II Student activity Play

Two isosceles triangles Whiteboard exercise Play

Types of triangles – activity Whiteboard exercise Play