My Definition

Key Characteristics

The following are true of cardinality:

  • When counting, the last number said indicates the amount in the set.

  • It tells how many objects are in a set.


Click on the link below to study an example of cardinality.

Cardinal Number Activity


Star Star Star Star Star
1 2 3 4 6

There are only five objects in this set.

TEKS: Kindergarten Introduction