Belong or Not Belong Worksheets for 1st Grade
Sort a row of shapes in mixed colors and find the one shape that doesn't belong. 15 free printable worksheets, each with an answer key.
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Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.
Worksheet #1
Worksheet #2
Worksheet #3
Worksheet #4
Worksheet #5
Worksheet #6
Worksheet #7
Worksheet #8
Worksheet #9
Worksheet #10
Worksheet #11
Worksheet #12
Worksheet #13
Worksheet #14
Worksheet #15
Belong or Not Belong: what children learn
Here the shapes in a row come in mixed colors, and the child has to group them by shape while ignoring color — deciding what belongs to a group is an early step toward sorting and classifying. (In "Same or Different" every shape matches exactly except one.)
Belong or Not Belong: worked example
A row of red and blue circles, and the 2nd one is a blue square. 2nd
Every shape is a circle except the 2nd one, which is a square — so the 2nd shape doesn't belong. Its color doesn't matter: other shapes are blue too.
Belong or Not Belong: a common mistake to watch for
Kids sometimes pick a shape just because its color stands out — reminding them that only the shape decides what belongs here helps.
Belong or Not Belong: how to help at home or in class
Show a group of objects that share one trait, like all round or all with wheels, and add one that does not fit. Ask your child to say the rule that fits the group, and then choose the one that breaks it. Let your child secretly pick a rule and see if you can guess it. Try rules like color, shape or use. When your child can both state a rule and find the item that does not fit, move on to sorting.
What is on these Belong or Not Belong worksheets
This set has 15 different worksheets for 1st grade, with 9 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Find the shape that does not belong. Write its place, like 3rd.”
Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers