Hello! My name I'm One- eyed Pete! Today I'm going to talk to you about trade.
Trade is when you exchange one thing for another. I'm going right now to go and try and trade some fish. I'm always on a boat and fishing and have too much. I also need some vegetables because I don't have enough. That's what I'm hoping for.
I see that you have vegtables to trade. I have fish. Would you be willing to give me 20 cobs of corn in exchange for 15 fish?
How about, 20 fish for 23 cobs?
After some conversation and cooperation, they came up with a compromise what to trade. Sometimes, people have to persuade in order to trade.
Trading requires cooperation. Sometimes, you don't get to trade because someone doesn't need it or they don't agree with the deal.