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3-D shapes (age 10+)

PROCEDURAL
Mathematics›Geometry|Ages 10—11|ID: mt_REwgr0d_ss

Recognise, describe, and build simple 3-D shapes, including making nets

Mastery Evidence

  • Identify which net will fold into a given 3-D shape
  • Construct the net of a triangular prism and fold it to verify
  • Describe a 3-D shape by naming its faces, edges, and vertices

Assessment Prompt

“If [child] is given a flat cross-shaped piece of card (a net), can they predict what 3-D shape it will make when folded up — and then fold it to check?”

Prerequisites2

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  • Nets of 3-D Shapes hard

    Recognising, describing, and building 3-D shapes by making nets is the core application of net literacy

  • 3-D shapes (age 9+) hard

    Building 3-D shapes extends Y5 recognition of 3-D from 2-D representations

    • 2-D shapes (age 7+) hard

      Y3 drawing 2D and making 3D shapes is prerequisite to identifying 3D from 2D representations

      • Edges, vertices, and faces hard

        Making/describing 3-D shapes requires knowing their properties (edges, vertices, faces)

        • 3-D shapes hard

          Describing 3-D properties (edges, vertices, faces) requires knowing the shapes first

        • Nets of 3-D Shapes soft

          Counting edges, vertices, and faces is reinforced by analysing nets where each face is visible as a separate 2-D shape

        • 3-D shapes (age 5+) hard

          Formal property description extends informal analysis of shapes

          • 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

      • 2-D shapes (age 6+) hard

        Drawing 2-D shapes requires knowing their properties

        • Angles in triangles (age 6+) soft

          Understanding defining attributes supports describing shape properties formally

          • 2-D shapes hard

            Distinguishing defining vs non-defining attributes requires knowing common 2-D shape names first

          • 3-D shapes (age 5+) hard

            Identifying defining attributes builds on informal analysis and comparison of shapes

            • 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

        • 2-D shapes hard

          Describing properties of 2-D shapes (sides, symmetry) requires knowing the shapes first

        • 3-D shapes (age 5+) hard

          Formal property description extends informal analysis of sides and vertices

          • 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

      • Nets of 3-D Shapes soft

        Drawing 2-D shapes and making 3-D shapes from materials is supported by being able to sketch and interpret nets

    • Nets of 3-D Shapes hard

      Identifying 3-D shapes from 2-D representations requires understanding the relationship between a net and its solid

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