Early concepts of the structure of benzene Student activity Play

Energy losses Simulation Play

Energy losses Student activity Play

Equal angles imply parallel lines Student activity Play

Equal segments Animation Play

Equations involving the cosine function Student activity Play

Equations involving the cosine function Whiteboard exercise Play

Equations involving the tangent function Student activity Play

Equations involving the tangent function Whiteboard exercise Play

Exact values of trigonometric ratios for selected angles Student activity Play

Exact values of trigonometric ratios for selected angles Animation Play

Examples of angles Animation Play

Examples of refraction Student activity Play

Examples of rotation Student activity Play

Exercises Student activity Play

Exercises Student activity Play

Expressions for angles Student activity Play

Expressions for angles Whiteboard exercise Play

Exterior and interior angles of a triangle Student activity Play

Exterior angle of a triangle Whiteboard exercise Play

Exterior angle of a triangle – exercises Student activity Play

Exterior angle of a triangle – observation and proof Student activity Play

Exterior angle of a triangle – proof Animation Play

Exterior angles Animation Play

Exterior angles in a triangle Simulation Play