“…This purpose should emphasize, as its focus, growth and improvement of teaching and student learning (Blase & Blase, 1998;Brandon et al, 2018;Robinson, 2011;Timperley, 2011a;Zepeda & Lanoue, 2017). • Supervision should be varied and differentiated so that all teachers are engaged in a range of individual, small group, peer, and collective instructional supervision approaches clearly focused on building and supporting quality professional practice on an ongoing basis (Brandon et al, 2018;Brandon et al, 2016;Glickman, Gordon, & Ross-Gordon, 2017;Le Fevre & Robinson, 2014;Marshall, 2013;Pajak, 2003;Robinson, 2011;Timperley, 2011b;Zepeda & Lanoue, 2017). • Supervision practices should be informed by evidence gathered from multiple sourcesclassroom observations, pedagogic dialogue, artifacts of student workto support professional practice, while at the same time deepening instructional leadership practice (Brandon et al, 2018;Brandon et al, 2016;Glatthorn, 1984;Marshall, 2013;Marzano, Frontier, & Livingston, 2011;Pajak, 2003;Robinson, 2011;Timperley, 2011b).…”