In this report the TeacherSolutions Teacher Working Conditions team--a group of 14 accomplished teachers who work in mostly high-needs schools and districts, both urban and rural, draw on current research and Center for Teaching Quality case studies to identify essential, research-based principles that must undergird sustainable and effective teaching reforms. America's teachers must have the opportunity to make decisions about instruction in their classrooms and schools in order to reach students with diverse and unique needs. Funded by the Ford Foundation, their year of TeacherSolutions work has identified both the policies and practices needed to ensure great teaching for all students.