The Interactive Discovery-Based Units for High-Ability Learners, for grades 6–8, provide teachers with opportunities to use exciting and challenging units in their classrooms. These engaging curriculum units culminate in authentic performance situations that provide students with open-ended opportunities to demonstrate academic understanding. Each book in the series contains tiered lessons that teachers can easily modify to meet individual students' needs.

In Understanding Physical and Chemical Changes, a science unit, students work to understand the concepts and definitions of physical and chemical change. The unit pays particular attention to highlighting the indicators of these changes, which students employ to develop data collection tables to use in the experimental phase. In a culminating authentic project, lab teams are challenged to design their own experiments that illustrate a physical or chemical change.

Grades 6–8