Mathematics – Stage 1 – Year B – Unit 24
Smaller numbers can be found hiding in bigger numbers – develops student knowledge, understanding and skills of place value and how smaller numbers can be found hiding in bigger numbers.
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:
- visualise, estimate, and investigate the structure of groups of 10
- sort, create, recognise, and represent numbers and collections up to 100 in different ways
- ask questions, represent ideas, and record thinking using objects and drawings.
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
- Represent numbers on a line
- Represent the structure of groups of ten in whole numbers
- Use counting sequences of ones and tens flexibly
- Form, regroup, and rename three-digit 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
- Represent equality
Combining and separating quantities B– MAO-WM-01, MA1-CSQ-01
- Represent and reason about additive relations
- Form multiples of ten when adding and subtracting two-digit numbers
- Use knowledge of equality to solve related problems