Austin Newman, 10, of Menlo Park, Calif., is not allowed to play video games during the school week. His mother, Michelle DeWolf, says she had to take that step to keep her son focused on his homework during the week. Michelle DeWolf hide caption

itoggle caption Michelle DeWolf

Eva Hu-Stiles virtually interacts with her grandmother. iPad assist by Elise Hu-Stiles. John W. Poole/NPR hide caption

itoggle caption John W. Poole/NPR