“…Created by some of the field's most senior and well-respected scholars -Deborah Ball, Magdalene Lampert, Pamela Grossman, and others -this field sought to connect the growing interest in "ambitious teaching" with a more practice-based approach to teacher education (Ball & Forzani, 2011;Grossman, Hammerness, & Mcdonald, 2010;Lampert et al, 2014). Over the past decade, this work has grown from an initial interest in math and ELA to encompass science, history, and social studies (Grossman, 2018;Stroupe, 2017); it has become central to both practice and scholarship at such leading universities such as Michigan, Pennsylvania, and Washington, it has created a consortium to advance this work, and Deborah Ball's nonprofit, Teaching Works, received a nearly $7 million grant from the Gates foundation to spread this approach to teacher education. This is an active field of research and scholarship and thus there is variation across scholars and institutions.…”