The document summarizes the mastery learning model of teaching. It defines mastery learning as an approach that helps students attain satisfactory performance in school subjects by breaking content into discrete units and requiring demonstration of mastery of one unit before advancing to the next. The key elements of the mastery learning model include planning for mastery, teaching for mastery, formative evaluation, providing remediation, and summative evaluation to assess mastery across units. Benefits include helping students identify their strengths and weaknesses, individualizing instruction, and reducing variation in achievement levels.