I attended Park City Mathematics Institute Summer Secondary Teachers Program. That is a mouthful and luckily the PCMI folks love acronyms (We had a presentation on all the acronyms the first day. Not even joking a little bit.)
Anyways, part of the SSTP is spent in Working Groups of 8-10 teachers and 2 teacher leaders. We were giving 8 hours a week to fiddle around and come up with something that would be useful to the larger mathematics community.
I had the pleasure of working with Joey and Barb. Joey and I came up with a project to help students better visualize points, lines, and planes while learning how to draw 2-D drawings of 3-D situations and use Geogebra. I haven't been able to try the project yet (one-to-one laptop program doesn't launch until next week), but several other PCMI-ers in the math teacher blogosphere have given it a go and written about their experiences.
Click HERE for PiCrust's review
Click HERE for f(t)'s initial description
Click HERE for f(t)'s follow-up
Sooo exciting. I can't wait to try it.