AC9M3A01
Official content description
recognise and explain the connection between addition and subtraction as inverse operations, apply to partition numbers and find unknown values in number sentences
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What Year 3 Maths students should achieve
Coverage is judged against the achievement standard — not by ticking every content description. These are the official Year 3 Maths standard sentences this code builds towards:
- Students conduct guided statistical investigations involving categorical and discrete numerical data, and interpret their results in terms of the context.
- They use mathematical modelling to solve practical problems involving single-digit multiplication and division, recalling multiplication facts for twos, threes, fours, fives and tens, and using a range of strategies.
- They create algorithms to investigate numbers and explore simple patterns.
- Students represent unit fractions and their multiples in different ways.
- Students use familiar metric units when estimating, comparing and measuring the attributes of objects and events.
- By the end of Year 3, students order and represent natural numbers beyond 10 000.
The Algebra progression either side of AC9M3A01
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 2
- AC9M2A01recognise, describe and create additive patterns that increase or decrease by a constant amount, using numbers, shapes and objects, and identify missing elements in the pattern
- AC9M2A02recall and demonstrate proficiency with addition facts to 20; extend and apply facts to develop related subtraction facts
- AC9M2A03recall and demonstrate proficiency with multiplication facts for twos; extend and apply facts to develop the related division facts using doubling and halving
Builds towards · Year 4
- AC9M4A01find unknown values in numerical equations involving addition and subtraction, using the properties of numbers and operations
- AC9M4A02recall and demonstrate proficiency with multiplication facts up to 10 x 10 and related division facts; extend and apply facts to develop efficient mental strategies for computation with larger numbers without a calculator
Other Year 3 Algebra codes
- AC9M3A02extend and apply knowledge of addition and subtraction facts to 20 to develop efficient mental strategies for computation with larger numbers without a calculator
- AC9M3A03recall and demonstrate proficiency with multiplication facts for 3, 4, 5 and 10; extend and apply facts to develop the related division facts
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.