Pt. I. Leading a differentiated classroom. Understanding differentiation in order to lead : aiming for fidelity to a model ; Teaching what you believe : a philosophy to guide teachers who lead for differentiation ; The invitation to be part of a vision : talking with students, parents, and other educators about differentiation -- Pt. II. Managing a differentiated classroom. Learning environment : setting the stage for academic success ; Classroom routines : preparing for the work ahead ; Routines in a differentiated classroom : once the work begins ; Yes, but--common sticking points about differentiation.