All you need to know is that its 100 yards long with a line every 5 yards. Those little white tick marks each represent a yard. Simple, right?

Ok, so the objective is this: Eleven dudes have to move an egg-shaped ball down the field towards the other teams endzone. They can run with the ball, throw (or pass) the ball to another dude, or kick the ball. They get four tries to go 10 yards. Every time they try, it's called a "DOWN," basically because...