A tablet or phone can be a classroom, an office, a gathering place for family and friends, and even a way to unwind after long, difficult days. Technology keeps us together, helps us learn and supports our work. Kids get this. But they don’t necessarily always understand limits—that, like everything in life, screen time is better in moderation. This is why it’s important for parents to set rules around how much time their children spend in front of a screen every day. These four screen-time guidelines can help families use electronic devices in a safe and healthy way, now and in the future.