Find Shapes by Their Parts
Preschool Math Worksheet - Challenge Me
Circle the picture.
Circle the shape with 3 corners.
Circle the shape with 4 corners.
Circle the shape with no corners.
PencilGoPreschool · Math · Geometry
Preschool Find Shapes by Their Parts worksheets
6 printable versionsChallenge MeAbout 2 minutes eachFree · no account
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About this worksheet
Counting a shape's parts is a slower, more useful skill than naming its outline, because it works on shapes a child has never seen. This page uses one word, corner, and one idea: a corner is where two edges meet. The first three questions draw one shape, a triangle, a square or a rectangle, and ask how many corners it has. On the ready and practice sheets every corner carries a dot, so the child can touch the dots and count them. The stretch sheet takes the dots away, so the only method left is to put a finger on the outline and travel around once.
That is the method worth teaching. Choose a starting corner, say one, move along the edge to the next corner, say two, and keep going until you arrive back where you began. The last three questions turn it around: hear a number of corners, or none, and point to the shape that has them. Children who count the starting corner twice usually have not marked where they started, and a fingertip left in place fixes it.
What your child will learn
- Count the corners of a triangle, square and rectangle
- Count corners without counting the first one twice
- Find the shape that has three corners, four corners or none
- Count a shape's corners when nothing is marked for you
Head Start ELOF standard: P-MATH 9, K.G.B.4
Worked example
Put a fingertip on one corner of a triangle and travel around: three corners.
Common mistake
Arriving back at the starting corner and counting it a second time, which turns three into four.
Helpful hint
Mark where you started with a fingertip and travel around once.
Questions parents ask
What is the most common mistake with find shapes by their parts?
Arriving back at the starting corner and counting it a second time, which turns three into four.
How can I help my child with find shapes by their parts?
Mark where you started with a fingertip and travel around once.
Are these preschool math worksheets free to print?
Yes. All 6 printable versions on this page are free to download and print, with no account needed.
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