Teachers can be very informative, and they can be very learned as well. But, in some cases, they don't know a lot about sports. What I don't know can actually affect the children in the classroom. Teachers know only a few facts about football. They know that football was invented more than 2000 years ago. They also know that it has been a very popular spot among multiple countries in the entire world. Teachers also know that the football industry is a multibillion-dollar industry. Teachers also know another amazing thing about football; teamwork. Teamwork is what makes a great team click.