Eurika Math: http://greatminds.net/support/parents
Khan academy: http://www.khanacademy.org
Castle Learning: http://www.castlelearning.com
Exit Tix: https://exittix.com/frontend/login/
Learn Zillion: http://learnzillion.com
For extra practice plotting points, try this!! http://funbasedlearning.com/algebra/graphing/points/
Free online math resources and games: http://www.crickweb.co.uk/ks1numeracy.html#fmacheracy.html#fmach
Interactive Fun and Games Review: http://www.quia.com/shared/mathematics/
For Parents: 8th Grade Learning Standards (NYS) : http://www.ixl.com/math/standards/new-york/grade-8