Indianapolis Public Schools (IPS) teacher Bonnie Benson was among the 12 teachers selected for the new Change Agent Fellowship that Teach Plus launched in 2015 in partnership with IPS. In collaboration with their principal, every Change Agent successfully led a school effort to identify and solve real challenges for their students. As a Change Agent, Bonnie increased her school’s use of differentiated instruction. She built a team to help develop common definitions of and strategies for differentiation and built a system of weekly observations, classroom walkthroughs, and lesson plans to measure changes in teaching. Her work led to every teacher on her multi-grade team increasing their use of differentiated student intervention groups from zero to two-three times per week, resulting in improved student performance.