Previous year foundations
Number ideas to carry forward
Year 9 number work becomes more abstract, but it still builds on proportional and approximation thinking from Year 8.
- Ratio scaling, simplifying and sharing in a ratio.
- Percentages of amounts without a calculator.
- Rounding to significant figures.
From Year 8Number
Previous year foundations
Algebra ideas to carry forward
The Year 9 algebra section starts to move towards GCSE, so secure Year 8 structure work should stay visible.
- Simplify expressions review.
- Expand single brackets.
- Solve two-step linear equations.
From Year 8Algebra
Previous year foundations
Geometry ideas to carry forward
More proof and formal diagram reasoning in Year 9 works best when Year 8 spatial fluency is already secure.
- Translations, reflections and rotations.
- Volume of cuboids and prisms.
- Angles in parallel lines.
From Year 8Geometry
Previous year foundations
Data ideas to carry forward
Year 9 data handling becomes more interpretive, but it still depends on secure graph reading from Year 8.
- Draw and interpret pie charts.
- Scatter graphs, line of best fit and correlation.
- Choose the most appropriate graph for a data set.
From Year 8Statistics and data