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

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

Exact values of trigonometric ratios for selected angles Animation Play

Exact values of trigonometric ratios for selected angles Student activity Play

Examples of monohybrid inheritance of genetic disorders Student activity Play

Exercises about the ratio of two quantities Student activity Play

Experimental probability Whiteboard exercise Play

Finding ratios Whiteboard exercise Play

Finding sides Student activity Play

Finding the common ratio and the first term of the geometric series Whiteboard exercise Play

Finding the exact values of trigonometric ratios for selected angles Student activity Play

Finding the first term and the common ratio of the geometric sequence Whiteboard exercise Play