Make a necklace with your child using different colored beads and string. Have your child put the beads into “like” piles (red with red, blue with blue), and then decide on a pattern: Which color should go first? And after that? Now let’s repeat the colors in the same order to make a pattern!
A-B-A-B-A- A Book of Pattern Pla, by Brian Cleary .
Lots and Lots of Zebra Stripes: Patterns in Nature, by Stephen R. Swinburne.