TY - BOOK AU - Posamentier, Alfred S AU - Krulik, Stephen TI - Problem solving in mathematics, grades 3-6 : powerful strategies to deepen understanding SN - 9781412960670 SN - 200804966 U1 - 372.7 POS PY - 2009/// CY - Thousand Oaks, CA PB - Corwin KW - Mathematics - Study and teaching (Elementary) KW - Problem solving - Study and teaching (Elementary) N1 - Includes bibliographical references (p. 134) ER -