These resources are designed to encourage students to see the bigger picture of proportional reasoning and cover:

  • conversion between related compound units (speed, rates of pay, prices, density, pressure) in numerical and algebraic contexts
  • the understanding that X is inversely proportional to Y is equivalent to X is proportional to 1/Y
  • the construction and interpretation of equations that describe direct and inverse proportion
  • the interpretation of the gradient of a straight line graph as a rate of change and to be able to recognise and interpret graphs that illustrate direct and inverse proportion