Maryland Math K.DS.A.2
The Standard
Analyze data sets by ordering the categories by count.
Maryland College and Career Ready Standards for Mathematics (2025) · CLASSIFY OBJECTS INTO CATEGORIES TO REPRESENT DATA.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students sort objects into groups and count how many are in each group. They put the groups in order from fewest to most or most to fewest.
What Mastery Looks Like
- A student counts each group and places the groups in the right order. They can explain which group has more and place groups with the same count together.
Common Misconceptions
- Students may order groups by the size of the objects or the names of the colors instead of the counts. They may think two groups with the same count cannot share a place.
How to Assess It
- Give each child picture cards showing 2 cats, 4 dogs, and 3 birds. Ask them to place the cards from fewest to most and explain their order.
Lesson moves
Ways to Teach It
Give pairs 12 colored buttons to sort by color, count, and slide into a row from fewest to most.
Draw stacks of 2, 4, and 4 cubes; ask, 'Which two can switch places when we order them from fewest to most?'
Play Order the Cards: partners arrange picture cards with 1 cat, 3 dogs, and 5 birds from most to fewest.
At snack, count apple slices, cheese cubes, and crackers on a plate; arrange food picture cards from fewest to most.
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Printable K.DS.A.2 Worksheet
A ready-to-print activity worksheet aligned to K.DS.A.2, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- 7.DS.B.3.a
Use histograms and other visualizations to describe similarities and differences in the range, shape, and clustering of the data sets.
- 1.DS.A.1.b
Collect and organize categorical data (into up to three categories) using surveys or observations.
- K.DS.A.1
Organize data by classifying objects into given categories and counting the number of objects in each category (Limit the total in any one category to maximum o...
- 2.DS.A.1.a
Craft a question that can be answered by collecting categorical and numerical data.
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