Have your team have an offensive line of four across(Two center, and two 'wings'). Teach the 'wings' to break for the goal if either of the two wings have the ball, but don't let them go off sides. Teach the two center players to team up and offer support to any of the offensive players. Encourage the two centers to pass to each other until they are close enough, and the two wings have a clear shot, then pass it to either of the wings and they will take the shot on goal.