Objects: paper "stop," "yield," and "railroad crossing" highway signs

I'm sure one of the biggest complaints about growing up is that you can't do what you want to all the time. But have you ever thought what the world might be like without rules? Everything would be confusing and messed up.

I have before you three signs which you probably see every day. (Illustrate these signs as you explain them.) First, there is a stop sign. Imagine you are riding in your car with your father. Soon he sees this red sign from a distance. He then slows down and comes to a complete stop. He will look both ways to see if any other cars are coming. If he sees no cars, he will drive across the road.

Next, he may come to another sign which is round and has the letters "R. R." written on it. This mea…