Object: Some boards, nails and hammers, or screws and screwdrivers.

Good morning, boys and girls. How many of you have ever started to do a job, but when you were ready to start, you found that you were missing something? (Let them answer.) Let me show you what I mean. Let's pretend that we want to put these nails in the board. You have the nails and you have the board, now put the nails in it. (Hold back the hammer.) Who wants to put the nails in? (Ask for a volunteer but do not give him a hammer.) What's the problem? Can't you put the nails into the board? Do you need something else? (Let them answer.) That's right, you need a hammer. You can't do the job unless you have a hammer, can you?

The same thing would be true if I gave you a board and some screws. If you did not hav…