“Everything in our school is designed towards developing stewards of planet Earth and healthy, effective citizens of the world,” says Buffy Cushman-Patz, the executive director at the 6-8 School for Examining Essential Questions of Sustainability (SEEQS) in Honolulu, Hawaii. In addition to regular classes, students enroll in a year-long, project-based, interdisciplinary course that’s designed around a sustainability question relevant to Hawaii. Past topics include, “How do humans and the oceans impact each other?” or “Why harness energy, and how?” Teachers of different disciplines, such as math and English, support students in each step of the student’s project, whether to use geometry to calculate measurements of an irrigation system or collect and analyze water quality data using basic statistics. When students looked into “What does it take to feed a community?”, for example, they first set the goal of feeding 100 people by the end of the semester. They started by transforming...