Here are some math resources that we found helpful:

• “Dr. Math” algebra lesson plans
• Eisenhower National Clearing House – Pre-algebra, Algebra 1 and Algebra 2
• National Council of Teachers of Mathematics (NCTM)
• Math Forum of Drexel University
• Mathsoft Unsolved Problems
• Eisenhower National Clearing House for Mathematics
• The Explorer TM: Educational Resources For K-12 Math and Science Education
• Practical Algebra Lessons from PurpleMath