3The Focus On High School Chemistry Teacher's Manual accompanies the Focus On High School Chemistry Student Textbook and the Focus On High School Chemistry Laboratory Workbook. The Teacher's Manual includes additional information about the material covered in the Student Textbook, answers to the study questions, and guides and instructions for the 10 hands-on chemistry experiments in the Laboratory Workbook. The Focus On High School Chemistry Teacher's Manual contains 10 black and white chapters. Grades 9-12.