EconEdLink has a long list of online economics lessons organizeable by grade level, concept, or lesson plan type. Each lesson is online with directions, questions, and links to additional resources. With lessons available for Kindergarten through 12th grade, EconEdLink is suitable for all grade levels.
This article from Market Watch, Kids and Money, includes a list of online resources for teaching children (by age) about money management.
Children ages preschool to college can learn about about handling, managing and saving money at MoneyInstructor.com. Teach your younger children about recognizing, counting and using money with their printable money, money worksheets and money related games. Teach your older children about banking, consumer math and basic economics with worksheets and …
If your child is ready to move on to algebra, CoolMath.com offers a series of Algebra 1 lessons online (they also have pre-algebra, algebra 2 and pre-calculus!) The lessons don’t come across as boring and they provide periodic opportunities to practice what you’ve learned.
For those who will be learning pre-algebra this year, Gamequarium has a variety of activities to help your children practice their new skills.
Woodlands Maths Zone by Woodlands Junior School is an excellent resource for primary math. With sections for Numbers Skills (Addition, Subtraction, Multiplication, Division, Fractions, etc), Shape and Space Skills (Shapes, Symmetry, Angles, etc), Data and Probability, Measuring Skills, and Maths and Investigations… you are certain to find games and activities …