What is something that you have bought for your classroom that has been life changing? Last year I invested a great deal of money into flexible seating and it’s changed my classroom, the atmosphere, how I teach, and how the kids learn. Looking to invest some money into something this summer that is equally life changing. Thinking about STEM boxes or a new writing center. When I started here 2 years ago everything in my room was probably 15-20+ years old. Help me update what should I invest in?