Family Math has ideas to encourage your child to use the skills they have learned at school when at home, at the grocery store and while traveling!
AplusMath provides interactive math activities to help students improve their math skills, and includes worksheets, games and on-line flash cards.
Family Math for Young Children is a book that guides parents with insights and ways to encourage their young children's delight in math. It includes games, activities, and explorations integrating counting, sorting, classifying, logic, arithmetic, and other important mathematical skills.
Ami (no last name) has a review of the book and ideas for keeping needed supplies organized and available at a moments notice.
For a different twist, HomeAdvisor is a home improvement site. Formulas are available to estimate how much tile you need for a bathroom, how much paint for the nursery, concrete, drywall and more. Given the popularity of home improvement, this site could be a motivator.
Count Us In, a kid-friendly site, contains 15 online games with content like measurement, sorting, patterns and classifications.