Mathematics – Stage 1 – Year A – Unit 19
This two-week unit develops student knowledge, understanding and skills with two-dimensional (2D) shapes, three-dimensional (3D) objects and volume.
Mathematics K-2 Syllabus © 2022 NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales.
Students are provided opportunities to:
- classify 2D shapes and 3D objects in different ways according to their features
- recognise that flat surfaces of 3D objects can be named as 2D shapes
- understand that 3D objects are named according to their features
- see how 3D objects can look different depending on the perspective
- measure internal volume using uniform informal units
- compare and order internal volume based on size
- recognise that 3D objects can have the same name but be a different size and appearance
- compare 3D objects of a different appearance which have the same volume
- understand that volume is recorded by referring to the number and type of uniform informal units used.
Syllabus focus and content group
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
- Represent the structure of groups of ten in whole numbers
- Form, regroup and rename three-digit numbers
Two-dimensional spatial structure – MAO-WM-01, MA1-2DS-01, MA1-2DS-02
- Recognise and classify shapes using obvious features
Three-dimensional spatial structure A – MAO-WM-01, MA1-3DS-01, MA1-3DS-02
- 3D Objects: Recognise familiar three-dimensional objects
- 3D Objects: Sort and describe three-dimensional objects
- Volume: Measure and compare the internal volumes (capacities) of containers by filling
- Volume: Measure the internal volume (capacity) of containers by packing
- Volume: Construct volumes using cubes
Three-dimensional spatial structure B – MAO-WM-01, MA1-3DS-01, MA1-3DS-02
- 3D Objects: Describe the features of three-dimensional objects
- Volume: Compare containers based on internal volume (capacity) by filling and packing
- Volume: Compare volumes using uniform informal units