Mathematics·Geometry·conceptual
Flat vs Solid Shapes
Distinguish two-dimensional (flat) shapes from three-dimensional (solid) shapes
Suggested ages 5–6
Learning journey
Your child is exploring shapes and space — recognising circles, triangles, and squares, building with 3D shapes like cubes and spheres, and describing where things are using words like above, below, and beside.
Evidence of understanding
- Sort shapes into 'flat' and 'solid' groups
- Explain that a circle is flat but a sphere is solid
- Identify whether a given shape is 2-D or 3-D
Assessment prompt
Does Flat vs Solid Shapes understand the difference between a flat shape like a square and a solid shape like a cube — and can they sort everyday objects into flat or solid?
Standards alignment
K.G.3US · ccss-math
Identify Two-Dimensional and Three-Dimensional Shapes
Common Core State Standards for Mathematics · K