Check out this link for a webcast from the Literacy and Numeracy Secretariat on Creating the Conditions for Learning Mathematics.
Here is the description from the LNS RSS feed:
Creating the Conditions for Learning Mathematics, an In-depth Co-Learning Experience for Students and Educators. Through the lens of Dr. Alex Lawson, classroom teacher Margaret Allen and her students, viewers can consider various aspects of student learning of mathematics along with clips from Doug Clements and Lucy West. The Viewer's Guide for this resource includes samples of written student work.