For teachers, Laud, a staff development specialist and former math teacher who teaches an online course on differentiated middle school math instruction at Bank Street College of Education, outlines seven practices for using formative assessment to differentiate math instruction with students in grades four through 10. She presents research on the benefits of formative assessment and differentiation; assessment strategies and how to use the data; tiered unit and lesson planning, with reproducible handouts; strategies for supporting low-achieving students and challenging students who are math talented; and time management strategies. The practices are based on research and her classroom experiences and have been tested by teachers. Annotation ©2011 Book News, Inc., Portland, OR (booknews.com)