1. Geometry basics—symmetry, angle types, chord/segment definitions, line reflection, perpendicular bisectors, enlargement, transformations 2. Algebraic expressions—simplifying, expanding, solving equations, nth term, sequences, gradient, inequalities 3. Arithmetic—fractions operations, ratios, percentages, bounds, prime factorization, compound interest 4. Data handling—scatter graphs, tree diagrams, probability, mean calculation, flaws in data collection 5. Applied problem-solving—volume and mass unit conversions, total cost formulas, sharing ratios, shape perimeter/angle