This has been so great for teaching my kids about money. Before we just had a piggy bank for each of them and my son never wanted to spend his money on anything. This was kind of a good thing, but at the same time, I wanted him to feel free to spend his money some of the time. The Moonjar makes it easy for him to divvy up his allowance and birthday money. We also love the "How the Moonjar Was Made" book.