Wyoming Math K.MD.3
The Standard
Classify objects into given categories; count the numbers of objects in each category and sort the categories by count. (Limit category counts to be less than or equal to 10.)
2023 Wyoming Mathematics Content and Performance Standards · Classify objects and count the number of objects in each category.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students sort objects into groups named by the teacher. They count each group, up to 10 objects, then put the groups in order from fewest to most.
What Mastery Looks Like
- Given 3 red, 5 blue, and 5 green buttons, a student sorts them by color and counts each pile without skipping a button. They put red first and explain that blue and green tie.
Common Misconceptions
- Students may sort by size when the given categories are colors. They may skip an object or count it twice. Some order the labels by name instead of by count.
How to Assess It
- Give each child 3 star, 5 circle, and 2 triangle cutouts with labeled boxes. Ask them to sort the shapes, write each count, and number the boxes from fewest to most.
Lesson moves
Ways to Teach It
Give pairs 4 red, 2 blue, and 5 yellow counters; have them sort by color, count, and arrange color labels from fewest to most.
Draw piles of 2 hats, 4 mittens, and 4 scarves; ask, "Which groups tie, and where do they go in count order?"
Deal nine cat, dog, and bird picture cards; students sort, count, and arrange the category labels from fewest to most.
Sort a classroom basket of 3 pencils, 4 crayons, and 2 erasers; count each type and order the supply labels by count.
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Printable K.MD.3 Worksheet
A ready-to-print activity worksheet aligned to K.MD.3, with an answer key for the teacher on its own page. No account needed.
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