Teaching can be a strange thing, you can plan a lesson to within an inch of your life, you can create resources and finely tune the learning objective, but sometimes some of the best lessons can be those that you didn’t plan or even create an objective for. This is one of those lessons. It was our termly celebration day, where parents are invited in to share their children’s work from the term, and we had just come to the end of the sharing with an hour still left of the day. I had a class of expectant parents with little to do. “Right,” I thought, and pulled a bit of gamification out of the bag.