Different angles Student activity Play

Does the triangle exist? Whiteboard exercise Play

Drawing an angle Whiteboard exercise Play

Drawing angles Student activity Play

Drawing angles Student activity Play

Enlargements Whiteboard presentation Play

Enlargements Class activity Play

Enzymatic method for determining glucose concentration Slideshow Play

Enzymatic method for determining glucose concentration in the blood Student activity Play

Enzymatic method for determining glucose concentration in urine Simulation Play

Enzymatic method for determining glucose concentration in urine Student activity Play

Equal angles imply parallel lines Student activity Play

Exact values of trigonometric ratios for selected angles Animation Play

Exact values of trigonometric ratios for selected angles Student activity Play

Examples of angles Animation Play

Expressions for angles Whiteboard exercise Play

Expressions for angles Student activity Play

Exterior and interior angles Animation Play

Exterior and interior angles of a triangle Student activity Play

Exterior angles Animation Play

Exterior angles in a triangle Simulation Play

Exterior angles in a triangle – proof Animation Play

Exterior angles in quadrilaterals Student activity Play

Exterior angles in quadrilaterals Whiteboard exercise Play

Exterior angles in quadrilaterals – a game Game Play