Google Chromebook Wallpaper with rules displayed. Hold students accountable for Google Chromebook rules every time they sign in to their Google Chromebook. Organize 1:1 student Chromebooks or Chromebooks in a shared cart with coordinating numbered background images - numbers #1-40 included. Direction sheets for students to follow to upload and set the images independently! Use that valuable Chromebook background space with these Chromebook wallpapers specially designed for the classroom.