AC9M8A01
Official content description
create, expand, factorise, rearrange and simplify linear expressions, applying the associative, commutative, identity, distributive and inverse properties
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What Year 8 Maths students should achieve
Coverage is judged against the achievement standard — not by ticking every content description. These are the official Year 8 Maths standard sentences this code builds towards:
- By the end of Year 8, students recognise irrational numbers and terminating or recurring decimals.
- Students use mathematical modelling to solve problems using linear relations, interpreting and reviewing the model in context.
- They conduct statistical investigations and explain the implications of obtaining data through sampling.
- Students use 3 dimensions to locate and describe position.
- They use Pythagoras’ theorem to solve measurement problems involving unknown lengths of right-angle triangles.
- They apply the exponent laws to calculations with numbers involving positive integer exponents.
The Algebra progression either side of AC9M8A01
A class can only meet this descriptor if they were taught the one before it. If yours hasn't, that's where the lesson starts — not here.
Taught before · Year 7
- AC9M7A01recognise and use variables to represent everyday formulas algebraically and substitute values into formulas to determine an unknown
- AC9M7A02formulate algebraic expressions using constants, variables, operations and brackets
- AC9M7A03solve one-variable linear equations with natural number solutions; verify the solution by substitution
Builds towards · Year 9
- AC9M9A01apply the exponent laws to numerical expressions with integer exponents and extend to variables
- AC9M9A02simplify algebraic expressions, expand binomial products and factorise monic quadratic expressions
- AC9M9A03find the gradient of a line segment, the midpoint of the line interval and the distance between 2 distinct points on the Cartesian plane
Other Year 8 Algebra codes
- AC9M8A02graph linear relations on the Cartesian plane using digital tools where appropriate; solve linear equations and one-variable inequalities using graphical and algebraic techniques; verify solutions by substitution
- AC9M8A03use mathematical modelling to solve applied problems involving linear relations, including financial contexts; formulate problems with linear functions, choosing a representation; interpret and communicate solutions in terms of the situation, reviewing the appropriateness of the model
- AC9M8A04experiment with linear functions and relations using digital tools, making and testing conjectures and generalising emerging patterns
Content description and achievement standard © Australian Curriculum, Assessment and Reporting Authority (ACARA), Australian Curriculum Version 9, used under CC BY 4.0. TeachKoala is not affiliated with or endorsed by ACARA.