assessmentbackbasedclassclassesclassroomclassroomscontroldaydoneducationeventuallyexplorefastfirstflippedflippingflipsformativegettinggogreathappenhappenshighinstructionkidlearningleezelessonlessonslookmakesmasterymodelnowparentsprojectpuhreallyrepeatschoolsciencestandardsstepstorystudentstudentssucceedswedenteacherteachersteachingthreetoughunpackingusing