Click "Remix" in the top, right. Then click the "See inside" button of your copy. You should see four sprites and one backdrop. The button sprites and the backdrop just keep the user interface (UI) up-to-date. Your task is to help the wizard remember the values he needs to calculate the area of the shape the user selects. You'll do that with variables. The goal here is to learn to create variables that the wizard needs and insert them into the steps used to solve the problem of finding the area of the shape.
