Problem Solving in Mathematics, Grades 3-6 Autor Alfred S. Posamentier et al. 25 feb 2009 Paperback Preț: 216.75 lei 6-8 săpt.
Problem-Solving Strategies for Efficient and Elegant Solutions, Grades 6-12: A Resource for the Mathematics Teacher Autor Alfred S. Posamentier et al. 3 iun 2008 Paperback Preț: 289.13 lei 6-8 săpt.