Idea 12of 22Builds onSame pieces in every whole
12 thirds is still 4 wholes
4 ÷ 1/3 = 12. Did the 4 wholes grow?
Today you'll discover
- what the 12 in 4 ÷ 1/3 counts
- why the answer is bigger than 4
- what stays the same
Think first4 ÷ 1/3 = 12
4 ÷ 1/3 = 12. Did the 4 wholes grow into 12 wholes?
Decide first, then press Next. Count the bars, then count the pieces.
Four bars, each one whole, cut into thirds numbered 1 to 12, with 4 ÷ 1/3 = 12 underneath. A line adds: still 4 wholes, the 12 counts thirds, not wholes. The last step shows 2 ÷ 1/5 = 10.
See the whole ideathe big idea and the key word, in one place
The big idea
4 ÷ 1/3 = 12 counts thirds. The amount is still 4 wholes; only the unit changed.
Like money$4 is 16 quarters. You have more coins, but not more money: you counted the same amount in a smaller unit.
Key word
- unit
- the size you count in: wholes, thirds, quarters, metres or cups
Ready to use it?
- Say what the answer to a division by a unit fraction counts.