Mississippi Math K.CC.1a
The Standard
- K.CC.1
- a. Count to 100 by ones. b. Count to 100 by tens.
Count to 100 by ones.
2025 Mississippi College- and Career-Readiness Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students count aloud from 1 to 100, saying one number at a time. They keep the sequence going when the tens change, such as from 29 to 30.
What Mastery Looks Like
- A student counts from 1 to 100 without skipping or repeating numbers. They say 30 after 29, 60 after 59, and 100 after 99.
Common Misconceptions
- Some students skip a number or say the same number twice. Others get stuck at a change in tens, saying 40 after 29 or returning to 1 after 99.
How to Assess It
- Ask each child to count aloud from 1 to 100. Note any skipped or repeated numbers, especially when the tens change.
Lesson moves
Ways to Teach It
Give pairs 100 linking cubes and have them move one cube at a time while counting aloud to 100.
Ask partners, 'What comes after 29, 39, and 99?' Have them explain how they know.
Play pass-the-count around the circle, with each child saying the next number until the class reaches 100.
Count 100 steps on the playground, saying one number per step, then mark the finish with sidewalk chalk.
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Printable K.CC.1a Worksheet
A ready-to-print activity worksheet aligned to K.CC.1a, with an answer key for the teacher on its own page. No account needed.
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