TY - BOOK AU - Posamentier, Alfred S. AU - Krulik, Stephen TI - Problem-solving strategies for efficient and elegant solutions grades 6-12: : a resource for the mathematics teacher SN - 978-1-4129-5970-4 AV - 510.712 P84 PY - 2008/// CY - Thousand Oaks, CA PB - Corwin Press KW - Problem solving ER -