Mathematics – Stage 1 – Year A – Unit 4
Smaller numbers can be found hiding in bigger numbers – develop student knowledge, understanding, and skills of combinations of numbers that add up to a given number.
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:
- count on from the largest number to find the total of 2 numbers
- recognise and recall different combinations of 2 numbers that add up to a given number
- identify patterns to find all combinations for a given number
- use the bar model to represent parts of a number
- identify and combine numbers which make doubles facts
- describe combinations for numbers using words such as ‘more than’ and ‘less than’, and ‘double’
- find smaller numbers inside larger numbers
- identify near doubles by doubling the smaller number and adding one more or doubling the larger number and subtracting one less
- recognise and record numbers in different representations including words, numerals, and known structures such as dice, rekenreks, and ten-frames.
Syllabus focus and content group
Representing whole numbers A – 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
- Represent the structure of groups of ten in whole numbers
Combining and separating quantities A – MAO-WM-01, MA1-CSQ-01
- Use advanced count-by-one strategies to solve addition and subtraction problems
- Recognise and recall number bonds up to ten
- Use flexible strategies to solve addition and subtraction problems