December Expanded MTL Seminar, December 7, 9, & 14, 2006
Developing Geometric Reasoning: Part 1
 Slides for "Developing Geometric Reasoning: Part 1" Session PDF document
 Triangle Cards PDF document
 Tricky Triangle Task PDF document
 Recording Sheet for Reviewing Student Work Word document
 Student Work Samples:
 Article: "Developing Geometric Thinking through Activities That Begin with Play" written by Pierre M. van Hiele. Published in Teaching Children Mathematics, volume 5 (February 1999), pages 310316.
Note: You can get a copy of this article from your Math Teacher Leader, Math Teaching Specialist, or NCTM members may download it for free from:
http://my.nctm.org/eresources/article_summary.asp?URI=TCM199902310a&from=B
