# 2D and 3D objects: sides, vertices and symmetry

This guide provides a sequence of small steps for exploring shape, from recognising 2D shapes and 3D objects through to making patterns with shapes and objects. Note in this resource objects are often referred to as 3D shapes. It is advised to use the terminology 'objects' when talking about 3D and not 3D shapes as suggested in this resources.

Year level(s) Foundation, Year 1, Year 2, Year 3
Audience Teacher
Purpose Teaching resource, Teaching strategies
Teaching strategies and pedagogical approaches Questioning, Explicit teaching
Keywords 2D shapes, 3D shapes, sides, edges, vertices, lines of symmetry, problem solving, reasoning, explicit teaching

## Curriculum alignment

Curriculum connections Numeracy
Strand and focus Space, Build understanding
Topics Shapes and objects, Patterns and algebra
AC: Mathematics (V9.0) content descriptions
AC9MFA01
Recognise, copy and continue repeating patterns represented in different ways

AC9MFSP01
Sort, name and create familiar shapes; recognise and describe familiar shapes within objects in the environment, giving reasons

AC9M1SP01
Make, compare and classify familiar shapes; recognise familiar shapes and objects in the environment, identifying the similarities and differences between them

AC9M2SP01

Recognise, compare and classify shapes, referencing the number of sides and using spatial terms such as "opposite", "parallel", "curved" and "straight"

AC9M3SP01
Make, compare and classify objects, identifying key features and explaining why these features make them suited to their uses

Numeracy progression Number patterns and algebraic thinking (P2)
Understanding geometric properties (P1, P2, P3)