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1st grade · Math · Unit 11 of 16

One Half

Share fairly and find one half!

What your child practices

One half means 1 of 2 equal parts. Children share items fairly between two people and see that two halves make a whole.

New York State Learning Standards learning standard: NY-1.G.3 · splitting circles and rectangles into equal shares and naming halves

How we explain it

Children can open this short lesson before they practice.

  1. Half means two equal parts.
  2. Both parts must be the same size.
  3. Half of a number is shared by 2 fairly.

Example: What is half of 8? Share 8 between 2. Each gets 4. Answer: 4

One Half in New York

In the New York State Learning Standards, this is unit 11 of 16 in 1st grade Math, after Count It Up and before Hour & Half Hour.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: New York State Education Department (NYSED)

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    What part is shaded?

    • the whole thing
    • none of it
    • one half

  2. Question 2

    You eat one half of a bun. How much is left?

    🍞
    • one half
    • no bun
    • the whole bun

  3. Question 3

    16 🐞 are shared fairly by 2 friends. How many each?

    • 12
    • 8
    • 7

  4. Question 4

    6 🦋 are shared fairly by 2 friends. How many each?

    • 5
    • 7
    • 3

  5. Question 5

    What is half of 12?

    • 6
    • 4
    • 8

  6. Question 6

    Which words mean the same as “half”?

    • one of two equal parts
    • one of five parts
    • two wholes

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