← Home

Composing Shapes

PROCEDURAL
Mathematics›Geometry|Ages 6—7|ID: mt_MqqR7VUoz1

Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, quarter-circles) to create composite shapes, and compose new shapes from the composite shape

Mastery Evidence

  • Combine two triangles to form a rectangle or larger triangle
  • Put together half-circles and quarter-circles to form circles or new shapes
  • Decompose a composite shape and describe which simpler shapes make it up

Assessment Prompt

“Can [child] use flat shapes like triangles and rectangles to fit together and make a new larger shape — like a puzzle?”

Curriculum Standards1 alignment

1.G.2Common Core State Standards for Mathematics
Compose two-dimensional and three-dimensional shapes

Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.

G

Prerequisites2

Show full prerequisite tree
  • 2-D shapes hard

    Need to recognise 2-D shapes before composing them into composites

  • Combining Simple Shapes hard

    Composing 2-D shapes at Grade 1 level extends the Kindergarten concept of composing simple shapes

    • 2-D shapes hard

      Composing shapes requires recognising the component shapes

    • 3-D shapes (age 5+) soft

      Composing shapes benefits from understanding shape attributes to know how pieces fit together

      • 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

Unlocks0

No topics build on this one.