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 platforms 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.

Ecopolis has students run their own government to learn about issues including scarcity, resource allocation, needs vs. wants, opportunity costs, entrepreneurship, and global interdependence.

I am a sixth grader from an advanced-learning 5/6 grade combo class. My teacher got this book, and she really enjoyed it. In the next week, we are going to start electing officials and finding ways for the John Que and Suzie Que Public[?] to make money. My friend and I are running for the 'Head Hancho'[?] election. I think it will be a lot of fun for us, the students, and it will also teach us not only social studies, and the way things actually work, but teamwork, leadership, and a LOT of responsibility. I recommend this style of social studies learning to every classroom!

--CB