Eureka Math Grade 3, Module 4: Multiplication and Area
In this unit, your child measures area by tiling shapes with squares, then connects that tiling to multiplication. A rectangle with 4 rows of 6 squares covers 4 × 6 = 24 square units. They split larger rectangles into smaller ones to find areas with harder facts. This builds on the multiplication facts just learned and comes before fractions on the number line.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Module 4?
- Tiling a rectangle with square tiles, no gaps and no overlaps, and seeing that a unit square has an area of 1 square unit. Learn more: Area: how much flat space a shape covers
- Counting area in square centimeters and square inches, and drawing squares they make up themselves on grid paper. Learn more: Finding area by counting squares
- Finding area by multiplying side lengths, and splitting a 7 by 8 rectangle into 7 by 5 and 7 by 3 to solve it. 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
- Use a waffle, a sheet of crackers, or a chocolate bar with squares and ask your child how many squares cover the whole thing.
- Ask your child to measure a book cover with sticky notes, then with playing cards, and talk about why the two numbers differ.
- Measure a rectangular rug or table in feet and ask your child to find its area by multiplying length by width.
Where kids can get stuck
- Counting some squares twice or skipping some in a large shape, so the area is off by a few.
- Answering with a length unit, like 56 centimeters, when the area is 56 square centimeters.
- Counting an overlapping section twice when splitting a shape into two rectangles.
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
- How much flat space a shape covers.
- unit square
- A square with sides 1 unit long; it has an area of 1 square unit.
- square unit
- The unit we use to measure area.
- tile
- To cover a shape with squares that touch, with no gaps or overlaps.
- length
- How long one side of a shape is.
- width
- How wide a shape is; the length of its other side.
- area model
- A rectangle split into parts to show multiplication.
- square centimeter
- A tiny square 1 centimeter long on each side.
Want to help your child master multiplying to find 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 Math Grade 3 Module 4 cover?
Eureka Math 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.