This document discusses essential questions, capacity matrices, and Q-charts. It describes using thinking skills like description, definition, details, compare/contrast, cause/effect, and sequence of events to build questions from learning targets. Students can choose from circle maps, double bubble maps, multi-flow maps, tree maps, and fishbone maps as tools. Students then self-select which group to join each day based on their capacity matrix. Background questions are classified as "right there" or "think and search" while essential questions are "in your head".