TY - BOOK AU - Ksuma, Valency Adelard TI - Enhancing students' positive attitude in learning Mathematics in Tanzania: design and evaluation of exemplary learner centered materials for teaching set AV - DIS QA 8.7 .K78 2016 PY - 2016/// CY - Dodoma PB - The University of Dodoma KW - Mathematics KW - Study and teaching KW - Tanzania N1 - Includes references ER -