A 12-month online subscription to Thinkwell's Biology Compatible with AP* Biology features more than 350 tutorials and 65 available contact hours of content with interactive exercises, study notes, animations, and more. Online access is provided immediately upon your purchase.

*AP is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product.

A 12-month online subscription to Thinkwell’s Chemistry features more than 300 tutorials and 65 available contact hours of content with interactive exercises, study notes, animations, and more. Online access is provided immediately upon your purchase.

A 12-month online subscription to Thinkwell's Calculus BC Compatible with AP* Calculus features more than 100 tutorials and 30 available contact hours of content with interactive exercises, study notes, animations, and more. Online access is provided immediately upon your purchase.

*AP is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product.

With more than 40 hand-picked topics most commonly found on a final exam, coupled with dynamic assessments and a practice final, Thinkwell's Biology TestPrep makes finals season a breeze!

A 12-month online subscription to Thinkwell’s Macroeconomics features more than 150 tutorials and 30 available contact hours of content with interactive exercises, study notes, animations, and more. Online access is provided immediately upon your purchase.

A 12-month online subscription to Thinkwell’s American Government features more than 170 tutorials and 40 available contact hours of content with interactive exercises, study notes, animations, and more. Online access is provided immediately upon your purchase.

A 12-month online subscription to Thinkwell’s College Algebra features more than 260 tutorials and 40 available contact hours of content with interactive exercises, study notes, animations, and more. Online access is provided immediately upon your purchase.