Finding the polar coordinates of the points Animation Play

Finding the right region Whiteboard exercise Play

Gradient of a road Whiteboard exercise Play

Gradient of a road Student activity Play

Graphical solution of a system of inequalities Whiteboard exercise Play

Graphical solution of inequalities Whiteboard exercise Play

Graphical solution of inequalities (2) Class activity Play

Graphical solution of inequalities (2) Whiteboard presentation Play

Graphical solutions of inequalities Student activity Play

How to find the equation of a tangent from a point to a circle? Animation Play

Hydrogen atoms on oxygen or nitrogen are usually not coupled to their neighbours Animation Play

Hydrogen bond and dispersion forces Animation Play

Hydrogen bonding Student activity Play

Hydrogen bonding and boiling points Animation Play

Hydrogen bonding and boiling points Student activity Play

Hydrogen bonds formed in ammonia and water Animation Play

Identifying oxidation–reduction reactions Student activity Play

Inequalities Whiteboard presentation Play

Inequalities Class activity Play

Inequalities and regions on the plane Animation Play

Inequalities in two variables Whiteboard exercise Play

Inequalities in two variables Student activity Play

Intermolecular forces Class activity Play

Intermolecular forces Whiteboard presentation Play

Ionic bond Animation Play