Schultz-Ferrell, an elementary mathematics instructional specialist, shows pre-kindergarten through second grade teachers how to explore their reasoning and support their mathematical thinking in this book/CD-ROM package. She outlines strategies for encouraging students to describe their reasoning about mathematical activities, and details methods for questioning students about their conclusions and their thought processes in ways that support classroom-wide learning. The CD contains customizable teaching tools and student activities that can be printed from the computer. Annotation ©2007 Book News, Inc., Portland, OR (booknews.com)