Into Math Grade 2, Unit 7: Geometry and Equal Shares
In this unit, your child studies shapes and equal parts. They name shapes by counting sides, angles, and faces; split rectangles into rows of same-size squares; and cut circles and rectangles into halves, thirds, and fourths. They also add equal rows to find totals in arrays. It builds on measurement and data and gets kids ready for multiplication and fractions in third grade.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Unit 7?
- Drawing and naming triangles, quadrilaterals, pentagons, hexagons, and cubes from how many sides, angles, or faces they have. Learn more: Naming triangles, hexagons, cubes, and more
- Partitioning, or splitting, a rectangle into rows and columns of same-size squares and finding how many squares in all. Learn more: Splitting a rectangle into rows of squares
- Splitting circles and rectangles into halves, thirds, and fourths, and seeing that four fourths make one whole. Learn more: Halves, thirds, and fourths of shapes
- Adding equal rows to find the total in an array, writing an equation such as 5 + 5 + 5 = 15. Learn more: Counting objects in equal rows by adding
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
Which of these shapes has exactly three angles?
- Hexagon
- Triangle
- Square
How you can help
- Count the sides and corners of shapes around the house, like a door or a floor tile. Ask your child to name each shape and say how they know.
- Share a pancake or a tortilla three ways and ask whether the pieces are thirds. Talk about why each share has to be the same size.
- Lay out crackers in 3 rows of 5 at snack time. Ask your child to add the rows to find the total, and to say the matching equation, 5 + 5 + 5 = 15.
Where kids can get stuck
- Refusing to call an uneven six-sided shape a hexagon because it does not look like the usual one.
- Thinking a third is bigger than a half because 3 is bigger than 2.
- Writing too few addends for an array, such as 5 + 5 for 3 rows of 5.
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
- angle
- The corner where two sides of a shape meet.
- face
- A flat side of a solid shape. A cube has 6 faces.
- pentagon
- A flat shape with 5 sides and 5 angles.
- hexagon
- A flat shape with 6 sides and 6 angles.
- quadrilateral
- Any flat shape with 4 sides and 4 angles.
- half
- One of 2 equal shares of a whole.
- third
- One of 3 equal shares of a whole.
- fourth
- One of 4 equal shares of a whole, also called a quarter.
- array
- Objects set out in equal rows and columns, like eggs in a carton.
Ready to build your child’s confidence with shapes and equal shares?
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 Into Math Grade 2 Unit 7 cover?
Into Math Grade 2 Unit 7 covers these math standards. Each one links to what it means, sample questions, and teaching strategies.
- 2.G.A.1: Recognize and draw shapes having specified attributes.
- 2.G.A.2: Partition a rectangle into rows and columns of same-size squares.
- 2.G.A.3: Partition circles and rectangles into two, three, or four equal shares.
- 2.OA.C.4: Use addition to find the total number of objects arranged in rectangular arrays.
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.