Problems with storing electrical charge Student activity Play

Properties of a set Whiteboard exercise Play

Protons and electrons Student activity Play

Protons and electrons Whiteboard exercise Play

Quadratic function and its derivative Animation Play

Raising 10 to a positive integer Whiteboard exercise Play

Rate of change on the straight line Student activity Play

Reactions in the gas phase Animation Play

Reactions occurring at the electrodes Student activity Play

Reactions of nucleophiles: nucleophilic addition and addition-elimination Student activity Play

Reading monotonicity from the graph of the derivative Student activity Play

Reading monotonicity from the graph of the derivative Whiteboard exercise Play

Recover the function Student activity Play

Recovering data Whiteboard exercise Play

Recovering data Student activity Play

Rectangles Student activity Play

Reduction formulas for the cosine Animation Play

Reduction formulas for the sine Animation Play

Relative reactivity of carboxylic acid derivatives Animation Play

Roots of roots – finding true equations Whiteboard exercise Play

Roots of roots – more examples of true or false equations Whiteboard exercise Play

Rounding large numbers Whiteboard exercise Play

Rutherford's model of the atom Animation Play

Salts of strong acids and weak bases Whiteboard exercise Play

Salts of weak acids and weak bases Student activity Play