Hey Tek-ninjas! Are you back to school yet? Soon if not. Well, in anticipation of busy playgrounds, Tobii Dynavox has two give-aways that might interest you. Check it out!They are giving away 2 signs - 1 for you, and 1 for a co-worker. Enter for a chance to win for your classroom or playground PCS playground signs—which help students express themselves through symbols on the playground.