The essential help you need when your trigonometry textbook just isn’t making the grade! Trigonometry includes concepts that have both a geometric and an alge
This title in the Homework Helpers series will reinforce mathematical foundations and bolster students' confidence in pre-calculus. The concepts are explained i
This new title in the Homework Helpers series will reinforce mathematical foundations and bolster students' confidence in geometry. The concepts are explained i
Essential preparation for the new SAT Writing and Grammar Section. Homework Helpers: English Language & Composition is a user-friendly review book that will mak
Homework Helpers: Chemistry is a user-friendly review book that will make every student—or parent trying to help their child feel like he or she has a private