OwlSheets.com

Name Date

Swim Lane Unit Fractions

Split the pool lane from 0 to 1 into equal parts to find unit fractions.

Answer Key

Read the lane

Each pool lane goes from the start wall at 0 to the far wall at 1. The tick marks split the lane into equal parts.

1.
Coach Rivera puts tick marks on Ella's lane. Ella swims from 0 to the dot.
01

The lane is split into 4 equal parts.
The dot is at 1/4 of the lane.

2.
Omar swims from 0 to the dot.
01

The dot is at 1/3 of the lane.

3.
Priya swims from 0 to the dot.
01
Where is Priya's dot?
  • A. 1/7
  • B. 1/5
  • C. 1/6
  • D. 6
4.
Match each lane to the unit fraction at its dot.
  1. 01C
  2. 01D
  3. 01B
  4. 01A
  1. A. 1/4
  2. B. 1/6
  3. C. 1/2
  4. D. 1/8

Coach's lane plans

Help Coach Rivera split each lane into equal parts. Every lane goes from 0 to 1.

5.
Coach Rivera wants to split this lane into 3 equal parts.
01

She needs 2 tick marks between 0 and 1.
The first tick mark after 0 will be at 1/3.

6.
Kenji will swim 1/8 of the lane. Which number line shows a dot at 1/8?
  • A. 01
  • B. 01
  • C. 01
  • D. 01
7.
Coach Rivera splits a lane from 0 to 1 into 8 equal parts.

Each part is 1/8 of the lane.
It takes 8 of these parts to swim from 0 to 1.

8.
Ava swims 1/2 of the lane and stops. Which number line shows where she stops?
  • A. 01
  • B. 01
  • C. 01
  • D. 01

Check the swimmers' thinking

Read what each swimmer says. Decide what makes sense.

9.
Leo looks at this lane. He says the dot is at 1/5 because he counts 5 tick marks.
01
Which is correct?
  • A. The dot is at 1/4, because 0 to 1 is split into 4 equal parts.
  • B. Leo is right. There are 5 tick marks, so the dot is at 1/5.
  • C. The dot is at 1/3, because there are 3 tick marks between 0 and 1.
10.
Zoe draws a lane from 0 to 1. She splits it into 3 parts, but the parts are not the same size. Can she call the first tick mark after 0 the point 1/3?
  • A. Yes, because there are 3 parts.
  • B. No, because the 3 parts must be equal for each part to be 1/3.
  • C. Yes, because the first tick mark is always 1/3.
11.
Jun wants to show 1/6 on a number line from 0 to 1. Tell him how to find 1/6 and why that point is 1/6.

Split the line from 0 to 1 into 6 equal parts. The first tick mark after 0 is 1/6, because the space from 0 to that mark is 1 of the 6 equal parts of the whole.