Homeschool → Singapore → Secondary 1 → Mathematics
Secondary 1 mathematics
In Secondary 1, learners move from arithmetic towards algebra, using letters to represent numbers and solving simple equations. They work with index notation, prime factors and ratios, find the area of triangles and parallelograms, reason about angles formed by parallel lines, summarise data with the mean, median, mode and range, and describe sample spaces in probability.
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Number
- Prime factors and index notationFull lesson · 45 minWrite whole numbers as products of prime factors using factor trees, and use index notation to show repeated multiplication, such as 2 × 2 × 2 = 2³.
- Ratios and ratesFull lesson · 45 minCompare quantities using ratios, simplify ratios and solve everyday problems involving sharing in a given ratio and simple rates such as cost per kilogram.
Algebra
- Algebraic expressionsFull lesson · 50 minUse letters to stand for unknown numbers, write expressions from words, simplify expressions by collecting like terms and substitute values to evaluate them.
- Solving simple equationsFull lesson · 45 minSolve one- and two-step linear equations using inverse operations and check solutions by substitution.
Measurement
Space
Statistics
Probability
Plan with these topics
Curriculum notes
Australian Curriculum v9.0. Topics are organised around the Australian Curriculum v9.0 Mathematics strands. This is an independent learning resource; it is not endorsed by ACARA and has not been mapped to individual content descriptions.
These lessons were written around Australian Curriculum strands and matched to Singapore levels by age (Primary 1 is the first year of primary school). They are not aligned to MOE syllabuses or the PSLE, so check them against the syllabus your child is working towards.
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