Eureka Math Kindergarten, Module 3: Comparison of Length Weight Capacity and Numbers to 10
In this unit, comparing ties everything together. Your child decides which of two objects is longer, heavier, or holds more, then uses the same thinking with numbers, saying which group has more and which number is greater up to 10. After the shapes unit, children return to numbers with sharper comparing skills, ready for the next unit's work with number pairs, adding, and subtracting.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Module 3?
- Matching or counting two groups of up to 10 to find which has more, which has fewer, or whether they are the same. Learn more: Which group has more, fewer, or the same
- Comparing two written numbers from 1 to 10 and saying which is greater, or more, and which is less. Learn more: Comparing numbers from 1 to 10
- Describing objects by length, weight, and capacity, how much a container holds, and seeing that one object has all three. Learn more: Describing how long or heavy things are
- Comparing two objects directly to see which is longer, heavier, or holds more, and describing the difference in words. Learn more: Comparing which is longer, taller, or heavier
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 and your friend each have 7 stickers. Who has more?
- You
- You both have the same
- Your friend
How you can help
- Fill two different cups with water at the sink or in the bath, pour one into the other, and ask your child which cup holds more.
- Compare two shoes from the closet, first by lining up their heels to see which is longer, then by holding one in each hand to feel which is heavier.
- Write two numbers up to 10 on paper and ask which is greater, then let your child build each with toys to check the answer.
Where kids can get stuck
- Comparing two ribbons without lining up their ends, so the one sticking out further looks longer.
- Thinking a taller glass always holds more, even when a shorter, wider bowl holds more water.
- Saying 6 is greater than 9 because the two numerals look alike or the 6 was written larger.
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
- compare
- To look at two things or numbers and tell how they are different.
- longer
- Stretching further from end to end than something else.
- heavier
- Weighing more; harder to lift.
- capacity
- How much a container can hold.
- holds more
- Has room for a larger amount, like a pot compared with a cup.
- greater than
- More in number; 8 is greater than 5.
- less than
- Fewer in number; 3 is less than 6.
- same
- Having exactly as many as another group.
Want to help your child master comparing?
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 Kindergarten Module 3 cover?
Eureka Math Kindergarten Module 3 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.