This document provides information and strategies for differentiated instruction in grades 6-12. It defines differentiation as a teacher's response to learner needs by recognizing students' varying backgrounds and learning preferences. The document discusses why differentiation is important and lists key elements of differentiated instruction theory. It also provides many specific differentiation strategies teachers can use, such as flexible grouping, learning contracts, choice boards, and technology integration. The document aims to help teachers implement differentiated practices in their classrooms.