LoveToKnow.com has a nice list of mathematical concepts parents can work on with their preschool age kids. This site also includes a list of board games, online games and worksheets.

A fun resource for learning multiplication facts. A list of all the multiplication videos with lyrics is now available on the official School House rock site. Also check out School House Rock on YouTube, and School House Rock – Multiplication Rock DVD available from Amazon.com.

MightyMind Regular Edition is a tangram game which guides your child through an increasingly challenging series of puzzles. Kids work though sequentially numbered pattern cards which challenge them to create increasingly complex shapes. Recommended for kids age 3-8,  this game helps develop of visual and spacial perception, and problem solving skills.

PBS Parents has created a list of math games and activities for toddlers that use objects found in your home. Also, check out their activity suggestions for when you are out and about.