Math -
www.firstinmath.com
Khan Academy is a great site for students who need tutorials on lessons in Math. Tutorials in other subjects are available as well.
Khan Academy
The IXL Learning website is a dynamic program that adjusts the level of difficulty of the questions as students practice skills in Math and various subjects. Students can practice problems from pre-K Math to Calculus in various subjects such as Math, Language Arts, Science, and Social Studies. It includes instruction and skills practice for 7 Pre-Algebra A and 8 Algebra I A.
ixl.com
Math Goodies is a website with lessons on various topics in Math. The site also includes online quizzes to help gauge the student's understanding. a
Math Goodies (Pre-Algebra)
Math Planet does a great job at presenting example Algebra problems and provides an instructional YouTube video at the end of every lesson for further explanation. Additionally, you can take your knowledge and put it to practice on the SAT and ACT section of the site.
Math Planet