Ways to Think About Mathematics: Activities and Investigations for Grade 6-12 Teachers Autor Steve Benson et al. 12 dec 2004 Paperback Preț: 327.40 lei 6-8 săpt.
Facilitator's Guide to Ways to Think about Mathematics Autor Steven Benson et al. 30 sep 2004 Paperback Preț: 371.32 lei 6-8 săpt.