Do you remember what a polygon is? Student activity Play

Drawing a square in LOGO Simulation Play

Drawing a square inscribed in a circle Student activity Play

Drawing a square inscribed in a circle Whiteboard exercise Play

Easy calculations Whiteboard exercise Play

Easy calculations Student activity Play

Effect of concentration – a microscopic view Student activity Play

Electric charge Animation Play

Electric field potential Whiteboard exercise Play

Electric field potential Simulation Play

Electric field potential Student activity Play

Electric field strength Animation Play

Electric field strength Student activity Play

Electrical resistance Student activity Play

Emission spectrum Animation Play

Energy, power and intensity of a wave Student activity Play

Energy, power and intensity of a wave Animation Play

Energy, power and intensity of a wave Animation Play

Enlargement – the basic property Student activity Play

Enlarging the square Simulation Play

Enlarging the square – the basic property Simulation Play

Estimating areas Student activity Play

Exact values of trigonometric ratios Animation Play

Exact values of trigonometric ratios for selected angles Student activity Play

Examples of algebraic expressions Animation Play