The two-volume teacher edition presents research-based teaching strategies, including active learning, inquiry activities, group discussions, and formative assessments. The strategies all align with educational objectives and focus on explaining concepts to students by moving from concrete to abstract and by linking scientific concepts and processes with prior learning. Strategies also engage students both emotionally and intellectually. The teacher edition features a suggested teaching schedule, icon-coded items like weblinks and demonstrations, complete answers to review questions and solutions to math problems, and background information to enhance classroom instruction. It also includes a full-year lesson plan overview. Show Less