CHILDREN AND COMPUTER TIME... how much is too much?

“Okay, how would you like to use your imagination?”  In a heartbeat, they all retrieved iPads and/or expensive phones from their backpacks and started playing games – alone.  She stated it was as if they were all inside of their own little bubble.  They didn’t look at each other.  They didn’t laugh with each other.  They didn’t want to play together.  The only talk around the table was who had the nicest phone and iPad.