Drawing a graph of absolute value of the given function Whiteboard exercise Play

Drawing a parallelogram Whiteboard exercise Play

Drawing a parallelogram and calculating its area Whiteboard exercise Play

Early attempts to classify chemical elements (2) Student activity Play

Eka-aluminium and eka-silicon Whiteboard exercise Play

Elimination the extreme values Animation Play

Energy value of fuel Animation Play

Energy value of some fuels Illustration Play

Energy-level diagram for the hydrogen atom Animation Play

Enthalpy Whiteboard exercise Play

Enthalpy Student activity Play

Enthalpy of hydration Whiteboard exercise Play

Enthalpy of hydration Student activity Play

Enthalpy of solution. Part 1 Student activity Play

Entropy Student activity Play

Entropy and spontaneous changes Student activity Play

Entropy change in the surroundings Animation Play

Equilibrium constants for the reaction of nitrogen with oxygen Animation Play

Estimation of the median and the quartiles of grouped data Student activity Play

Exact values of trigonometric ratios Animation Play

Exact values of trigonometric ratios for selected angles Student activity Play

Exact values of trigonometric ratios for selected angles Animation Play

Example of solving linear inequality with the parameter Animation Play

Examples of a linear function Animation Play

Examples of functions Animation Play