Plus and MinusImagine a beautiful day outside. Whats there? The sun is out. The grass is waving. And the circus is in town! Plus And Minus is a game that thinks about building a story like you might build a house out of blocks. You place one transparent sheet on top of another, building a story as you go. This is a great way to get young children telling stories, encouraging them to invent, interpret, and even begin to think critically about how stories are made.