The teacher edition presents research-based teaching strategies, including active learning, inquiry activities, group discussions, and formative assessments, all of which are aligned with educational objectives. The strategies focus on explaining concepts to students by moving from concrete to abstract and by linking scientific concepts and processes with prior learning. Strategies consider the affective domain as well as the cognitive. The teacher edition features a teaching guide for each section, icon-coded items such as weblinks and demonstrations, complete answers to review questions, and background information to enhance classroom instruction. The teacher edition also includes a full-year lesson plan overview.