Kindergarten · Math · Domain guide

Counting & Cardinality in KindergartenK.CC Standards

Short answer. Counting & Cardinality is where kindergarten math begins, and it covers more than reciting numbers in order. Your child will learn to count to 100 by ones and tens, start counting from any number (not just 1), and write the numerals 0 through 20. The bigger idea hiding underneath is cardinality: understanding that when you count 7 crackers, the last word you say, seven, tells you how many crackers there are.

Over the year you'll see your child move from counting out loud in the car to counting objects one at a time with a finger on each, then to comparing two piles and saying which has more. The standards below sit in three clusters: K.CC.A covers number names and the count sequence, K.CC.B covers counting objects to tell how many, and K.CC.C covers comparing numbers and groups.

Grade: Kindergarten
Subject: Math
Standards: 7
Clusters: 3

Complete domain directory

Every K.CC standard, in order

Open a code for the official wording, a plain-English answer, what the skill can look like at home, and simple activities. The list below follows the Common Core sequence.

Cluster

Know number names and the count sequence.

3 standards

Cluster

Count to tell the number of objects.

2 standards

Cluster

Compare numbers.

2 standards

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More than a standards list

Use the framework guide for context, the learning hub for explanations, or printable practice when your child is ready to work on a skill.

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