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 the circle of the given equation Whiteboard exercise Play

Early concepts of the structure of benzene Student activity Play

Elastic potential energy Student activity Play

Elastic potential energy Whiteboard exercise Play

Elasticity Animation Play

Energy losses Student activity Play

Energy losses Simulation Play

Enlargement on the plane Animation Play

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

Enlargements Whiteboard presentation Play

Enlargements Class activity Play

Enlargements in the coordinate system Student activity Play

Enlargements in the coordinate system Student activity Play

Enlargements in the coordinate system Whiteboard exercise Play