From The Huffington Post: The sixth graders at Marymount School have a problem they need to solve. The American Dental Association recommends that kids brush their teeth for two minutes, twice a day. But the students know that most kids fall well short of that goal. How — their teachers ask — can they find a solution to this challenge? The girls open their sketchbooks and doodle possible solutions. One toothbrush plays music. Another comes with a timer. Still another has a tiny TV embedded into the handle. The project takes several weeks and involves more than a few trips to the school’s Fab Lab, a state-of-the art digital prototyping and manufacturing facility that Marymount started in 2011 to more thoroughly engage its students in math and science. It’s here that they transfer their sketches to computer-automated drawings, which are then sent to the classroom’s MakerBot, a 3-D printer that seems like it was plucked straight out of The Jetsons.