Blanton (mathematics, University of Massachusetts) examines the nature of algebraic thinking, algebra content for the elementary grades, and patterns that will prepare students for mathematics in later grades. The second half of the book suggests teaching practices that develop children's algebraic thinking and provides activities that make connections among mathematics, language arts, social studies, science, and even physical education. Annotation 穢2008 Book News, Inc., Portland, OR (booknews.com)