This document outlines the topics and schedule for a series of lectures and exercises called "Powers of Scale 3" focused on the relationship between individuals and their environments. The topics covered over the 8 days include: the self, reactions to lectures, prosthetics and covers, habitat and biotope, and the digital self. On day 5, the topic is "Our Habitat, Our Biotope" and students are assigned to create a 3 minute or less presentation exploring this topic, due by April 21st, in Keynote, PowerPoint or other widescreen format but not PDF. Case studies and examples of Boolean logic and Venn diagrams are provided.