Too often, mathematics and science are taught in isolation from each other and from meaningful problems that matter to students. This book draws on the authors’ experiences with teacher colleagues, including time spent in their classrooms co-developing and refining lessons. The core of their approach is to encourage learners to pursue solutions to everyday challenges through design-based learning cycles. Students use mathematical modeling to describe or summarize a phenomenon, predict which potential solutions may be successful, and/or to test actual performance against predictions. The...