This is a black and white Acrobat (.pdf) page that covers many of the basic concepts covered in Algebra I. It can be printed out on 8 1/2 X 11 paper and kept in a binder for reference.
Use it to quickly diagnose any weaknesses in combining like terms, using radicals and exponents, or solving rational equations and proportions.
Graphing linear equations is another basic concept in Algebra I. The following link covers it in detail: