Interrelationship of concentrations of hydrogen ions and hydroxide ions Student activity Play

Intersection point Animation Play

Intersection point of two straight lines Whiteboard exercise Play

Intersection points of two straight lines Student activity Play

Introducing a new variable into an equation Whiteboard exercise Play

Inverse operations Student activity Play

Inverse operations Whiteboard exercise Play

Inverse proportion Class activity Play

Inverse proportion Whiteboard presentation Play

Ionic equations Animation Play

Ionisation enthalpy and electron affinity Whiteboard exercise Play

Ionisation enthalpy and electron affinity Student activity Play

Iron extraction Whiteboard exercise Play

Iron extraction Student activity Play

Is the equation unique? Student activity Play

Is the equation unique? Whiteboard exercise Play

Is this a quadratic equation? Student activity Play

Is this a quadratic equation? Whiteboard exercise Play

Is this system at equilibrium? Student activity Play

Is this system at equilibrium? Whiteboard exercise Play

Le Chatelier's principle for gas reactions Whiteboard exercise Play

Le Chatelier's principle for gas reactions Student activity Play

Lena's number Whiteboard exercise Play

Lens equation and magnification Student activity Play

Lens equation and magnification Animation Play