Starry Arms: Counting by Fives By (author): "Michael Dahl"Genres:Childrens books Nonfiction books Mathematics books Counting books Number books ISBN1404811249ISBN139781404811249AsinStarry Arms: Counting by FivesOriginal titleStarry Arms: Counting By Fives (Know Your Numbers)Introduces counting by fives by counting the number of arms on starfishes. Readers are invited to find hidden numbers on an illustrated activity page.