AC9M1N02
Official content description
partition one- and two-digit numbers in different ways using physical and virtual materials, including partitioning two-digit numbers into tens and ones
Teach AC9M1N02 this week?
TeachKoala turns this descriptor into a complete lesson — illustrated slides with teacher notes, a differentiated activity sheet and a quiz — aligned to AC9M1N02 specifically, never an invented code. Your first lesson is free.
or see a finished lesson and unit plan first
What Year 1 Maths students should achieve
Coverage is judged against the achievement standard — not by ticking every content description. These are the official Year 1 Maths standard sentences this code builds towards:
- They demonstrate how one- and two-digit numbers can be partitioned in different ways and that two-digit numbers can be partitioned into tens and ones.
- Students partition collections into equal groups and skip count in twos, fives or tens to quantify collections to at least 120.
- Students measure the length of shapes and objects using uniform informal units.
- They compare and order objects and events based on the attributes of length, mass, capacity and duration, communicating reasoning.
- They make, compare and classify shapes and objects using obvious features.
- Students use numbers, symbols and objects to create skip counting and repeating patterns, identifying the repeating unit.
The Number progression either side of AC9M1N02
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 · Foundation
- AC9MFN01name, represent and order numbers including zero to at least 20, using physical and virtual materials and numerals
- AC9MFN02recognise and name the number of objects within a collection up to 5 using subitising
- AC9MFN03quantify and compare collections to at least 20 using counting and explain or demonstrate reasoning
Builds towards · Year 2
- AC9M2N01recognise, represent and order numbers to at least 1000 using physical and virtual materials, numerals and number lines
- AC9M2N02partition, rearrange, regroup and rename two- and three-digit numbers using standard and non-standard groupings; recognise the role of a zero digit in place value notation
- AC9M2N03recognise and describe one-half as one of 2 equal parts of a whole and connect halves, quarters and eighths through repeated halving
Other Year 1 Number codes
- AC9M1N01recognise, represent and order numbers to at least 120 using physical and virtual materials, numerals, number lines and charts
- AC9M1N03quantify sets of objects, to at least 120, by partitioning collections into equal groups using number knowledge and skip counting
- AC9M1N04add and subtract numbers within 20, using physical and virtual materials, part-part-whole knowledge to 10 and a variety of calculation strategies
- AC9M1N05use mathematical modelling to solve practical problems involving additive situations including simple money transactions; represent the situations with diagrams, physical and virtual materials, and use calculation strategies to solve the problem
- AC9M1N06use mathematical modelling to solve practical problems involving equal sharing and grouping; represent the situations with diagrams, physical and virtual materials, and use calculation strategies to solve the problem
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.