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What Is a Half?

CONCEPTUAL
Mathematics›Fractions|Ages 5—6|ID: mt_-hTTat0mBR

Recognise, find, and name a half as one of two equal parts of an object, shape, or quantity

Mastery Evidence

  • Fold a shape into two equal parts and identify each as 'a half'
  • Find half of 8 objects by sharing into 2 equal groups
  • Identify whether a shape has been divided into halves or not (equal vs unequal parts)

Assessment Prompt

“If [child] is helping share a sandwich equally between two people, can they cut it so both pieces are the same size — and tell you each piece is called a half?”

Curriculum Standards1 alignment

Maths/Y1/F/1The national curriculum in England
Recognise and find a half

Recognise, find and name a half as one of two equal parts of an object, shape or quantity.

Mathematics · Key Stage 1

Prerequisites1

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  • Division as equal sharing hard

    Finding a half requires equal sharing into 2 groups — a division concept

    • Subtraction as taking away or separating hard

      Division as equal sharing/grouping requires understanding subtraction as taking away/separating

      • How Many in Total? hard

        Understanding subtraction as taking away requires knowing numbers represent quantities (cardinality)

        • One-to-one counting hard

          Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'

Unlocks5