i-Ready Classroom Mathematics Grade 4, Unit 5: Measurement and Data
In this unit, your child converts measurements from larger units to smaller ones, solves story problems about time, money, distance, and liquid volume, and uses area and perimeter formulas. They also make line plots of measurements in halves, fourths, and eighths. It follows the decimals unit and leads into geometry and angles.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Unit 5?
- Converting feet to inches, hours to minutes, and kilograms to grams, and completing two-column conversion tables. Learn more: Converting feet to inches and kilograms to grams
- Solving measurement and money problems with all four operations, including some with simple fractions and decimals. Learn more: Story problems about distance, time, and money
- Applying area and perimeter formulas to rectangles, and finding an unknown side length from the area or perimeter. Learn more: Using area and perimeter to solve real problems
- Making line plots of measurements in fractions of an inch, and adding or subtracting the fractions to answer questions. Learn more: Charting measurements in halves, fourths, and eighths
Sample questions to try together
These are real questions from our practice. Tap the speaker to hear one read aloud, or the light bulb for a hint, and talk about the answer together.
Question 1 of 3
Amara buys a 5-pound bag of oranges. How many ounces does the bag weigh?
- 60 ounces
- 21 ounces
- 80 ounces
How you can help
- Measure pencils or crayons to the nearest quarter inch and make a line plot together. Ask your child how much longer the longest is than the shortest.
- Measure a rug with a tape measure. Ask your child for the length of tape to go around it and the space it covers, in feet and square feet.
- Let your child work out change at the store. If an item costs $6.75 and you pay with $10, ask them to count up from $6.75 to find $3.25.
Where kids can get stuck
- Lining up $6.75 and $5 as 675 and 5, and getting wildly wrong change.
- Counting the Xs on a line plot when the question asks for a total length.
- Writing an area as 24 feet instead of 24 square feet, mixing up the units.
Practice makes perfect
Bobby's Math Club has practice problems that adapt to your child’s level, each with a detailed explanation and an easy-to-follow video, so your child can build confidence in these skills one step at a time.
Words your child will hear
- convert
- To change a measurement into a different unit, like 3 feet into 36 inches.
- conversion table
- A two-column table of matching amounts in two units, like 1 foot and 12 inches.
- elapsed time
- How much time passes between the start and the end of an event.
- liquid volume
- How much liquid a container holds, measured in units like liters or cups.
- area
- The space inside a flat shape, measured in square units.
- perimeter
- The distance all the way around a flat shape.
- line plot
- A number line with an X above it for each measurement in a set of data.
- data
- Information that has been collected, like a set of measurements.
Want to help your child master measurement and data?
In Bobby's Math Club, your child practices these skills at just the right level, with a hint when they need one, a clear explanation after every question, and kid-friendly videos. Unlimited practice is free.
Join the club
Written by Robert “Bobby” Barnett
Bobby is an award-winning math teacher, the author of Meet Every Learner’s Needs, and the father of two elementary-school math learners. He uses Bobby’s Math Club with his own kids a few times every week. Learn more or contact Bobby.
Which math standards does i-Ready Classroom Mathematics Grade 4 Unit 5 cover?
i-Ready Classroom Mathematics Grade 4 Unit 5 covers these math standards. Each one links to what it means, sample questions, and teaching strategies.
For teachers: Unit names and order vary between editions and districts, so your school’s own materials have the exact sequence. Learn how Bobby's Math Club can help your students grow.