1st grade · Math · Unit 10 of 14
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.
Oregon State Standards learning standard: 1.GM.A.3 · partitioning circles and rectangles into equal shares and naming halves
How we explain it
Children can open this short lesson before they practice.
- Half means two equal parts.
- Both parts must be the same size.
- Half of a number is shared by 2 fairly.
Example: What is half of 8? Share 8 between 2. Each gets 4. Answer: 4
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Is this a fair way to cut a pizza in half?
🍕- Three parts
- Two equal parts
- One big part and one tiny part
Two equal parts
Hint: Halves must be the same size.
Question 2
What part is shaded?
- none of it
- one half
- the whole thing
one half
Hint: The shape has 2 equal parts and 1 is shaded.
Question 3
Cut a sandwich into 2 equal parts. Each part is one…
🥪- double
- half
- whole
half
Hint: Two equal parts are called halves. Each one is a half.
Question 4
You eat one half of a bun. How much is left?
🍞- one half
- the whole bun
- no bun
one half
Hint: The bun was 2 halves. You ate 1, so 1 half is left.
Question 5
What is half of 12?
- 5
- 9
- 6
6
Hint: Half of 12 is the number you get when you split 12 into 2 equal groups.
Question 6
20 🍓 are shared fairly by 2 friends. How many each?
🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓- 10
- 4
- 12
10
Hint: Make 2 equal groups. Deal them out one at a time.