Counting and Cardinality means that your child should know their numbers. They should be able to count from 0-100 by June. They should also be able to read the numbers 0-10 (zero, one, two, three, four, five, six, seven, eight, nine, and ten).
Here are some counting songs and games:
They also need to be able to count to tell the number of objects. You can practice this by having them help you count things around the house. Have them count to put objects in groups. They also need to be able to compare numbers. You can have them compare groups to see which has more or which has less.