It’s the classic question that countless math teachers around the world get every year from their students: How can I use this in the real world? A new app, Kapitall teaches students of any age about real-world trading and the stock market. Start by learning about ticker symbols then graduate to creating and building practice portfolios. There are three modes, including trading with virtual cash to learn the basics all the way into actual live trading (yep! With money!). But even without investing real cash, Kapitall offers a unique peek into the world of investing.