We check our phones upwards of 50 times per day - but when our kids play around with them, we get nervous. Are screens ruining childhood? According to children's media expert, Sara DeWitt, this is not true. In a talk that may make you feel a bit less guilty about handing a tablet to a child while you make dinner, DeWitt envisions a future where we're excited to see kids interacting with screens and shows us exciting ways new technologies can actually help them grow, connect and learn.