This is one of my favorite elementary classroom blogs. Maria Knee is a NH kindergarten teacher, a former NH Tech teacher of the year, and a generally awesome person. Just scroll through for lots of great ideas.
Sketchup in the classroom. Just 5 min video - take a look. HISTORY focus, maps, geography, street view, building 3d models. (Mike - really, take a look). Also, 5-8th grade tech-ed / design class (this one is someone from Maine - Keith Kelley - who is an amazing teacher). It's amazing what these kids can do.