Mentora

Sec 2 G3 Mathematics

Explore Sec 2 topics, revise key skills and check your foundations.

See the Sec 2 topic map

Browse topics

Choose what to revise

See the checklist

What you’re studying

Number and Algebra

Proportion, algebra, equations and quadratic graphs.

Geometry and Measurement

Similarity, right triangles and solids.

Statistics and Probability

Data displays, averages and single-event probability.

What these skills connect towards

Mentora learning connections · curriculum guidance, not personal mastery.

N2 → G2

Proportion and scale factors support scale drawings and similarity.

N5 → N7

Expansion, factorisation and algebraic fractions feed into equation methods.

What to revise

  • Ratio, scales, direct and inverse proportion.
  • Expansion, factorisation, algebraic fractions and formulae.
  • Linear and simultaneous equations, inequalities and quadratic graphs.
  • Similarity, Pythagoras, right-triangle trigonometry and solids.
  • Data displays, averages and single-event probability.

Where to start

Mentora suggested foundation checks

  • Sec 1 ratio, percentage and unit conversion.
  • Linear expressions, expansion and solving linear equations.
  • Coordinates, straight-line graphs and angle facts.
  • Area, volume, squares and interpreting data.
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Curriculum source and scope

Topic codes and level groupings follow the MOE G2 and G3 Mathematics Syllabuses. MOE publishes this scope by secondary level; it is not a school-by-school term calendar. Class teaching order can vary. Reviewed 2026-09-26.