Eureka Math² Kindergarten, Module 2: Two-Dimensional and Three-Dimensional Shapes
In this unit, your child spends time naming, sorting, and making shapes. Kindergartners tell flat shapes from solid ones, describe where things are with words like behind and between, count sides and corners, and draw or build shapes of their own. The sorting habits from the numbers-to-10 unit come back here, and next your child compares length, weight, and capacity.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Module 2?
- Describing where objects are with position words like behind, between, above, and next to, and spotting shapes in the room. Learn more: Spotting shapes and saying where things are
- Naming flat shapes correctly when they are tilted, flipped, stretched, or small, such as a triangle pointing down. Learn more: Naming shapes turned any which way
- Sorting shapes into flat, or two-dimensional, and solid, or three-dimensional, and explaining how they know. Learn more: Telling flat shapes from solid shapes
- Counting sides and corners, the points where sides meet, to compare one shape with another. Learn more: Comparing shapes by their sides and corners
- Drawing shapes and building them from straws or clay, with straight sides that meet to close the shape. Learn more: Building and drawing shapes
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
What shape is a slice of pizza?
- Triangle
- Circle
- Square
How you can help
- Hide a stuffed animal and describe where it is with words like behind the couch or between two pillows, then let your child hide it for you.
- Set out a ball, a box, a can, and a sheet of paper with a square drawn on it, and ask your child which are flat and which are solid.
- Build triangles and squares from straws and play dough, and ask your child to count the corners before you add the last side.
Where kids can get stuck
- Calling a ball a circle because that is how it looks from one side.
- Drawing a triangle with gaps between the sides, so the shape is not closed.
- Describing shapes only by color or size, saying 'the blue one is bigger' instead of naming sides or corners.
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
- two-dimensional
- Flat, like a shape drawn on paper; also called 2D.
- three-dimensional
- Solid, like a block you can hold; also called 3D.
- side
- A straight line that makes part of a flat shape's edge.
- corner
- The point where two sides of a shape meet.
- between
- In the middle of two things.
- behind
- At the back of something, hidden by it from the front.
- closed shape
- A shape whose sides all meet, with no gaps.
Want to help your child master shapes and position words?
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 Kindergarten Module 2 cover?
Eureka Math² Kindergarten Module 2 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.