Mathematics – Multi-age – Year A – Unit 9

Smaller numbers can be found hiding in understanding, and skills of combining and separating quantities.

Mathematics K-2 Syllabus © 2021 NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales.

In this unit students will learn to:

  • represent combining situations in different ways through the use of gesture, enactment, drawings, numbers and words
  • use symbols to describe mathematical quantities, actions, and relationships in efficient ways
  • understand that the order in which 2 quantities are combined does not change the result
  • recognise that when 2 collections have the same total, they are described as ‘equivalent in value’. Words such as ‘equal’, ‘equivalent’, and ‘is the same as’ can also be used
Representing whole numbers – MAO-WM-01, MAE-RWN-01, MAE-RWN-02
  • Instantly name the number of objects within small collections
  • Use the counting sequence of ones flexibly
  • Recognise number patterns
  • Connect counting and numerals to quantities
Combining and separating quantities– MAO-WM-01, MAE-CSQ-01, MAE-CSQ-02
  • Model additive relations and compare quantities
  • Identify part–whole relationships in numbers up to 10
Non-spatial measure– MAO-WM-01, MAE-NSM-01
  • Mass: Identify and compare mass using weight
Representing whole numbers – MAO-WM-01, MA1-RWN-01, MA1-RWN-02
  • Use counting sequences of ones with two-digit numbers and beyond
  • Continue and create number patterns
  • Represent numbers on a line
Combining and separating quantities– MAO-WM-01, MA1-CSQ-01, MA1-CSQ-02
  • Use advanced count-by-one strategies to solve addition and subtraction problems
  • Part A: Represent equality
  • Part B: Represent and reason about additive relations
  • Use flexible strategies to solve addition and subtraction problems
  • Part B: Use knowledge of equality to solve related problems
Forming groups– MAO-WM-01, MAE-FG-01
  • Part A: Count in multiples using rhythmic and skip counting
  • Part A: Model and use equal groups of objects to represent multiplication
  • Part B: Represent and explain multiplication as the combining of equal groups
Non-spatial measure– MAO-WM-01, MAE-NSM-01
  • Part A: Mass: Investigate mass using an equal-arm balance
  • Part B: Mass: Compare the masses of objects using an equal-arm balance

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