For a good, basic, introductory review, check into Hands-On Equations. It uses a simple set of manipulatives to clearly illustrate the conceptual side of algebra. It isn't a textbook but they do offer a student workbook.

Overall, it is pretty easy but I think it builds a really strong knowledge base for beginning students and would help algebra-timid students overcome their fear.

http://www.borenson.com/

P.S. The manipulatives may be something you can create at home . . .



Mom to DYS-DS6 & DS3