3-D shapes (age 5+)

CONCEPTUAL

Mathematics›Geometry|Ages 5—6|ID: mt_yGv8doDAmp

Analyse and compare 2-D and 3-D shapes using informal language to describe sides, vertices, and other attributes

Mastery Evidence

Count the sides and corners of a shape
Compare a triangle and a rectangle by number of sides
Describe a cube as having 'square faces' and 'corners'

Assessment Prompt

“Can [child] describe what makes two shapes different — for example, explaining that a triangle has 3 corners and 3 sides while a square has 4 of each?”

Curriculum Standards1 alignment

K.G.4Common Core State Standards for Mathematics

Analyze and Compare Shapes

Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/“corners”) and other attributes (e.g., having sides of equal length).

Geometry

Prerequisites2

2-D shapes
hardAges 4—6
3-D shapes
hardAges 4—6

Show full prerequisite tree

2-D shapes hard
Analysing and comparing shapes requires being able to name them first
3-D shapes hard
Analysing 3-D shapes requires recognising and naming them

Unlocks5

Building & Drawing Shapes
hardAges 5—6
Angles in triangles (age 6+)
hardAges 6—7
Edges, vertices, and faces
hardAges 6—7
2-D shapes (age 6+)
hardAges 6—7
Combining Simple Shapes
softAges 5—6