Energy-level diagram for the hydrogen atom Animation Play

Enthalpy Student activity Play

Enthalpy Whiteboard exercise 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

Equations with the modulus Student activity 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

Expected value and population variance Student activity Play

Expected value and population variance Whiteboard exercise Play

Finding an approximation of an irrational number Student activity Play

Finding maximum and minimum values Whiteboard presentation Play

Finding maximum and minimum values Class activity Play

Finding nth term expressions Student activity Play

Finding the discriminant Student activity Play