One of the great things about teaching is that while some students pass by like mist in the night others remain connected forever. I get to watch them grow into their careers and cheer them on. Its been three and a half years since I first designed and taught the Lean LaunchPad class and lots of water has gone under the bridge since then. I’ve taught hundreds of teams, the National Science Foundation Innovation Corps has taught close to 400 teams led by our nations top scientists, and the class is being taught around the world.