EXCHANGE: STEM students create winning invention

In this Jan. 20, 2017 photo, teacher Matt Erbach explains to his students what he is looking for as the group of Streamwood High School students in Streamwood, Ill., design a micro generator using wind power to light up areas around homeless shelters. Their wind-powered generator idea won the state competition in the Samsung Solve for Tomorrow contest, which encourages teachers and students to solve real-world issues using classroom skills in science, technology, engineering, arts and mathematics.