(link to accompany textbook)McDougal Littel site. 7th grade: Look for Middle School Course 3 Prealgebra: Look for Prealgebra http://www.classzone.com
(Simplifying square roots http://www.wisc-online.com/objects/index_tj.asp?objID=TMH1802
Regents Prep http://www.regentsprep.org