Where can I find the teacher guide or answer key for my textbook?

We have teacher manuals and downloadable supplements available for many of our textbook series, but they are available only to teachers using the textbook in a course. To protect the integrity of the teacher materials we cannot provide answer keys or other supplemental teacher materials to students or independent learners. Teachers, please contact us with your name, school/institution you are associated with, and the name of your course. If you are unable to use a school e-mail address (i.e., please provide a phone number or another method of contact.