Billstein, Rick. A problem solving approach to mathematics for elementary school teachers Rick Billstein, Shlomo Libeskind, Johnny W. Lott. - 8th ed. - Boston Addison-Wesley c2004. - xix, 885 p. ill. (some col) 26 cm. Includes bibliographical references and index. ISBN: 0321156803 9780321156808 0321263197 (pbk.) 9780321263193 (pbk.) LCCN: 2002034364 Nat. Bib. No.: GBA592005 Subjects--Topical Terms: Mathematics--Study and teaching (Elementary)Problem Solving--Study and teaching (Elementary) LC Class. No.: QA135.6 / .B55 2004 Dewey Class. No.: 372.7 / B5993p8