Just found this site which may be of interest to others:
In the teacher resource section, there are lesson plans including one on measuring the capacity of a robotic arm. Check out the "Profiles in Curiosity" section which features famous innovators. You can also sign up for updates and register for webinars. The Thursday, November 3, 2011, Thinkers of Tomorrow webinar series at 1PM is posted as a sesion for teachers and students with a robotics expert.