Cereal in different shapes; piece of paper
In a ziploc bag, put a handful of round Cheerios, square Chex, and rectangle Frosted Mini-Wheats. Divide a sheet of paper into 3 sections- circle, square, and rectangle. Have your child sort each piece of cereal onto the correct column of their paper. You can discuss which group has the most, least, fewer, more, or equal. You can count the cereal in each group. Older children can make patterns like circle, circle, square, etc.