CD-ROM developed by Maarten Dolk and Catherine Twomey Fosnot
Facilitator's Guide developed by Antonia Cameron, Sherrin B. Hersch, and Catherine Twomey Fosnot
In their series of professional books for teachers, "Young Mathematicians at Work," Catherine Twomey Fosnot and Maarten Dolk describe[...]

In our efforts to reform mathematics education, we've learned a tremendous amount about young students' strategies and the ways they construct knowledge, without fully understanding how to support such development over time. The Dutch do. So, funded by the NSF and Exxon Mobil, Mathematics in the Cit[...]