To Keep Schools Open, Schools Ask College Students to Help December 22, 2020 Grace Kern is working a substitute teacher at the Greenfield Intermediate School in Greenfield, Indiana. (AP Photo/Michael Conroy) Share share The URL has been copied to your clipboard 0:00 0:05:56 0:00 Pop-out player In a town near Indianapolis, Indiana, 19-year-old college student Grace Kern has been working in elementary school classrooms. She is helping students as teachers offer instruction online via a screen inside the room. "My dad told me that a bunch of teachers are out and they're struggling to get substitutes in. And I was like, 'Well, all my classes are online, except for one, so I have the time to do it.' And I would hate for the schools and the students to struggle," she said. Grace Kern is studying medical imaging technology at Indiana University – Purdue University Indianapolis.