NASA for middle-school students http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ace&wcsuffix=0775
National Geographic for Kids http://www.nationalgeographic.com/kids/
Cool Math for Kids For decimal review - choose decimals, scroll down to "Decimal Cruncher", choose your operation and difficulty level http://www.coolmath4kids.com
AAA Math For decimal review - find Math Topics, click on Decimals and practice. http://www.aaamath.com
KIDS'ZONE Word Problem Practice - Choose "Dare to Compare", choose Math and grade level 4 or 8 Graphing Practice - Choose "Graphing", choose graph style to practice "Dare to Compare" contains practice for subjects other http://www.nces.ed.gov/nceskids/
Multiplication This is a great site to practice basic multiplication tables. Pick the hardest level! http://www.multiplication.com
Play Kids Games Practice basic math facts - add, subtract, multiply and divide. Try Math Fact Practice http:/www.playkidsgames.com
This link will take you to video tutorials of each section of the textbook. http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ace&wcsuffix=0775