Eureka Math² Grade 3, Module 4: Area
In this unit, your child learns that area is how much flat space a shape covers. They tile shapes with squares, compare shapes that look different but cover the same space, and multiply side lengths to find the area of rectangles. They also add the parts of shapes made from rectangles. The facts from the last unit help, and fractions come next.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Module 4?
- Recognizing that two shapes with different outlines, like a long strip and a square, can both cover 16 squares. Learn more: Area: how much flat space a shape covers
- Measuring area with square inches, square centimeters, square feet, and square meters, and picking the unit that fits. Learn more: Finding area by counting squares
- Finding the area of rooms and figures made of rectangles by splitting them apart and adding the areas. Learn more: Finding the area of a rectangle
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
You want to cover a rectangular garden with new grass. Which measurement tells you how much grass you need?
- Perimeter
- Length
- Area
How you can help
- Lay out square floor tiles or count squares on a patterned rug and ask how many squares cover a section.
- Talk about whether a stamp, a rug, and a playground would be measured in square inches, square feet, or square meters.
- Arrange 16 square crackers into a long row and then a 4 by 4 square, and ask whether both cover the same space.
Where kids can get stuck
- Thinking shapes with different outlines cannot share an area, though a 2 by 8 strip and a 4 by 4 square both cover 16.
- Adding the length and width of a rectangle, so a 7 by 3 rectangle gets 10 instead of 21.
- Multiplying all the sides of an L-shape together instead of finding two areas and adding.
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
- area
- The number of square units that cover a shape.
- square unit
- A square used to measure area, like a square inch or square foot.
- square foot
- A square that is 1 foot on each side, about the size of a floor tile.
- square meter
- A square that is 1 meter on each side, big enough for a few children to stand on.
- square inch
- A square 1 inch long on each side, about the size of a postage stamp.
- rectilinear figure
- A shape built from rectangles, with every corner a square corner.
- length
- How long something is from end to end.
- width
- How far across something is from side to side.
Ready to build your child’s confidence with measuring area?
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 Eureka Math² Grade 3 Module 4 cover?
Eureka Math² Grade 3 Module 4 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.