Dividing an n-sided polygon into triangles Animation Play

Dividing the polygon into triangles Whiteboard exercise Play

Does the triangle exist? Whiteboard exercise Play

Domain and periodicity of trigonometric functions Whiteboard exercise Play

Domain and periodicity of trigonometric functions Student activity Play

Double-angle formulas Whiteboard presentation Play

Double-angle formulas Class activity Play

Drawing a central angle Simulation Play

Drawing an angle Whiteboard exercise Play

Drawing an inscribed angle Simulation Play

Drawing angles Student activity Play

Drawing angles Student activity Play

Drawing reflection diagrams Student activity Play

Drawing shapes in a graphic calculator Animation Play

Early concepts of the structure of benzene Student activity Play

Elements of a pyramid Student activity Play

Energy losses Student activity Play

Energy losses Simulation Play

Enlargement with centre at point (0, 0) Animation Play

Enlargements in the coordinate system Whiteboard exercise Play

Enlargements in the coordinate system Student activity Play

Enlargements in the coordinate system at the point (0, 0) Student activity Play

Enlargements in the coordinate system at the point (0,0) Whiteboard exercise Play

Enlargements with fractional scales Whiteboard exercise Play

Enlargements with fractional scales Student activity Play