About one-quarter of lower-income families with school-age children say a mobile device is their only way to access the Internet at home, according to a new study. iStockphoto hide caption

toggle caption iStockphoto

Amelia Westerdale works with physics students during a tutorial session at the University of Colorado Boulder. Westerdale is part of the Learning Assistant Program, tasked with helping to coach and tutor students. Theo Stroomer for NPR hide caption

toggle caption Theo Stroomer for NPR

NPR thanks our sponsors

Become an NPR sponsor