Cooper–zinc cell Animation Play

Diminution Animation Play

Enlargements with fractional scales Student activity Play

Fraction as result of division Student activity Play

Fraction in lowest terms Student activity Play

Half-equations of redox reactions Animation Play

Multiplication of fractions Student activity Play

Multiplication of fractions Animation Play

Oxidation–reduction reactions Student activity Play

Reactions occurring at the electrodes Student activity Play

Reducing an algebraic fraction Animation Play

Simplifying algebraic fractions Student activity Play

Streamlining to reduce friction Illustration Play

The result of division Animation Play

 Why do we need the hcf? Student activity Play

 Why do we need the hcf? Whiteboard exercise Play