Films shown on TV
A clearly set out investigation into TV film age ratings. This makes an ideal investigation for mixed ability groups as it is cleverly differentiated for E3-L2 (E2 students could also participate with support).
All you need is a recent weekly TV guide.
Covers tallies, dual and single bar charts, pictograms, extracting and comparing information and designing a questionnaire. Fully mapped, and ideal for, Functional Maths.