How do teachers captivate their students? Here, in a feature we call How I. Mindstorms Ev3 Education LEGO Mindstorms EV3. Even the name is formidable, but just wait until you connect the dots and fire up these dragon-esque robots. The EV3 set of robotic, programmable LEGOs is the very best version of this 14-year-old product line. After transforming his LEGO Mindstorms EV3 kit into a braille printer for the blind,…