CHAPTER TWO It’s Not About the Tools, but . . . 3D Printing Has a Lot to Offer “I enjoy the excitement of 3D models coming together. It takes time but it’s so much fun.” —Sara, age 9 Be Your Best Cheerleader If there ever were a contraption that caused quite the controversy at our school, it would be the three-dimensional (3D) printer. For about three years, there was a running joke between myself, the vice principal, and our principal and associate head of school. It went something like this: Me: “I want a 3D printer for our library. We could do so much with it.” Administration: “I’d like to have a clear understanding of how it would be valuable to the curriculum before purchasing a 3D printer.” Me: “There are so many opportunities to amplify the curriculum with a 3D printer. We can enhance the second grade unit on rocks and miner- als and simple machines, for example.” Administration: “Oh, look. It’s 3:05 and Stacy’s mentioning the 3D printer again. What has it been, like five minutes since her previous request for this? Look, it’s not about the cost. It’s about whether or not it will add value to the learning.”