There is oneTeacher's Guide which corresponds with each Student Activities Book, and consists of two parts: Answers and Instructional Aids for Teachers , and Answer Sheets . The Answers and Instructional Aids for Teachers provides advice for how to optimize the effectiveness of the activities, as well as brief explanations and comments on each question in the student activites. The Answer Sheets may be duuplicated and distributed to students as desired. Use of the Answer Sheets is particularly recommended for activities requiring a lot of graphing or drawing.
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