There was once a little boy. He lived by a lake. He had learned how to swim, and he was quite good at it. One day, during summer vacation, he was out by the lake, watching the fish swim around in the water, and the frogs jumping and croaking, and the minnows scattering each time he touched the water with the end of a stick. He thought to himself that it would be great fun to have a boat. He considered for a while what he might need to make one. He thought of wood, and a hammer and nails. He knew that would make a nice box, but he wasn’t sure if it would float. He was afraid it might sink to the bottom. He decided he would ask his father if he would help him build a boat. He knew his father had worked on a boat when he was younger, and the boy hoped he would know some of the tricks to make it float.