★Sides and Corners
Kindergarten Math Worksheet - Building Confidence
NameDate
Write how many sides.
PencilGoKindergarten · Math · Geometry
Kindergarten Sides and Corners worksheets
6 printable versionsBuilding ConfidenceAbout 2 minutes eachFree · no account
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About this worksheet
Counting the sides and corners of a flat shape is how children start to tell shapes apart by their parts. A triangle has three sides and three corners, a square and a rectangle have four, a pentagon has five and a hexagon has six. On this page every item shows one flat shape and a box, and the child counts and writes the number. A whole sheet asks about sides or about corners and never both, and the version decides which: odd versions count sides, even versions count corners, and the corners are marked with dots so the child can touch each one.
Count with a finger, starting at a mark of your own so you know where you began, and say the numbers aloud. The numbers are the same for sides and corners on straight-sided shapes, which makes a good thing to notice.
What your child will learn
- Count the sides of a flat shape
- Count the corners of a flat shape
- Use the number of sides to name a shape
- Write numbers from 3 to 6
Common Core standard: K.G.B.4
Worked example
A triangle has three straight sides. Touch each side once: 1, 2, 3. Write 3.
Common mistake
Counting a side twice, or counting the corners and the sides together.
Helpful hint
Start at one side, mark it, and touch each side once.
Questions parents ask
What is the most common mistake with sides and corners?
Counting a side twice, or counting the corners and the sides together.
How can I help my child with sides and corners?
Start at one side, mark it, and touch each side once.
Are these kindergarten math worksheets free to print?
Yes. All 6 printable versions on this page are free to download and print, with no account needed.
Similar: Names of Flat Shapes · Flat and Solid Shapes
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