K-12 teachers have until November 15 to register teams for this year’s Edison Invention Challenge.  During the next few months, teams of up to four students each will create prototypes of inventions related to alternative energy and complete accompanying videos and design portfolio documentation.  Deadlines in the schedule are December 20 and March 15.  Stipends of $250 (up to one per school) are awarded to all teams that complete the assignments.  Winners receive Maker prizes and 3D printers. Register here. For more information, email edisoninventionchallenge@gmail.com.