Early math ability is one of the best predictors of children's later success in school. Because children's learning begins in the home, families are fundamental in shaping children's interest and skills in math. The experience of learning and doing math, however, looks different from the instruction that was offered when most adults were in school, and many parents harbor anxiety about math. For this reason, families need guidance, inspiration, and motivation to support their young children's mathematical development effectively. This compilation of articles written by researchers and program developers offers important lessons about engaging families in children's learning of mathematics anywhere, anytime. Taken together, they show that: (1) Math is part of our everyday lives, and as such, is conditioned by relationships, culture, and values; (2) Math can be an enjoyable parent-child experience; and (3) Digital media can be harnessed to promote math learning--for children and parents. This issue contains the following articles: (1) Formula for Success: Engaging Families in Early Math Learning (Heather B. Weiss, M. Elena Lopez, and Margaret Caspe); (2) Math Is Everywhere, When We Know What to Look For (Taniesha A. Woods); (3) Reading Interactive Math Storybooks (Herbert Ginsburg, Colleen Uscianowski, Victoria Almeda, and Cassie Freeman); (4) Q & A with Laura Overdeck of Bedtime Math: Helping Families and Children Cuddle Up to Math (Margaret Caspe); (5) "Daddy Says This New Math Is Crazy" (Becky Smith-McCarthy); (6) Expert Commentary to "Daddy Says This New Math Is Crazy": Three Tips for Teachers (Marlene Kliman); (7) Helping Teachers of Mathematics Integrate the Knowledge and Culture of Families Into Their Practice (Margaret Caspe and Laura Alves); and (8) Transmedia Activities: Engaging Families to Improve Children's Early Mathematics Achievement (Betsy McCarthy). An appendix is included.