The American football consists of 2 teams, one on offense the other on defence with 11 players each. It is played on a rectangular field with goalposts at each end. Each team has to pass the ball (by running with the ball or passing to team members) into the opposition's ‘end zone’ for a touchdown. Each team gets 4 downs (chances) to pass the ball 10 yards forward. If they don't make it the other team gets the ball back. Points are scored by passing the ball into the opposing team’s end zone for a touchdown or kicking the ball through the opposite team’s goal post.