Dividing into a given ratio Student activity Play

Dividing quantities in a given ratio Whiteboard exercise Play

Dividing quantities in a given ratio Student activity Play

Dividing segments in a given ratio Whiteboard exercise Play

Dividing segments in a given ratio Student activity Play

Division into three parts in a given ratio Animation Play

Division into three parts in a given ratio Student activity Play

Division into two parts in a given ratio Student activity Play

Division of a segment Animation Play

During a thunderstorm Student activity Play

During a thunderstorm Whiteboard exercise Play

Elemental analysis Illustration Play

Empirical formulae and molecular formulae of compounds Student activity Play

Empirical, molecular and general formula Animation Play

Energy (calorific) values for some common fuels Chart Play

Enlargement – the basic property Student activity Play

Enlarging the right-angled triangle – the basic property Simulation Play

Enlarging the square – the basic property Simulation Play

Enzymatic reactions Whiteboard exercise Play

Enzymatic reactions Student activity Play

Equality of two ratios: proportion Whiteboard exercise Play

Equality of two ratios: proportion Whiteboard exercise Play

Equality of two ratios: proportion (1) Student activity Play

Equality of two ratios: proportion (2) Student activity Play

Exact values of trigonometric ratios Animation Play