Hi everyone. Thank you for your thoughtful and good ideas and suggestions. 
I believe I will be coming back to read your ideas here again and again periodically to refresh myself on your suggestions- there is much good advice here for adults as well as children. Much more than will be grasped in one session.
Well, I would say my day at school was a success. I spent an hour with my son’s class. First I let them ask all the questions they wanted to ask about anything about stocks, business, etc and boy oh boy did they have lots of questions. 6th graders are great. It was really very fun to be with them. A lot of questions were about how to pick a good stock. They asked about taxes, mortgages, how to tell if a company is good, how to tell if stock will go up or down, if you can believe it, about short vs. long term, all kinds of good stuff. I passed out copies of financial magazines and newspapers for them to look at. They liked that.
Many of your suggestions related to the Law of Compound Return. After the questions, I turned the discussion to the Law of Compound Return. They really were amazed by the idea. I drew a big graph on the board (they have been studying graphs in math) and showed them how the curve did not go in a straight line like they might of thought, but rather curved upward in an ever increasing rate…like a rocket ship. There were lots of ooohs and ahhhs from many of them in the class. It was really quite neat.
I also asked them to take as a homework assignment to tell their parents about the Law of Compound Return. I don’t know how the assignment turned out, but I did tell them that many of them now knew more than their parents and that they could now help their parents by telling them in turn about the Law of Compound Return. I hope at least a few did. I was hoping that by telling their parents it would more likely help them remember it. I told them it would help their parents save for their retirement. They seemed to take that very seriously. I gathered from their questions that quite a few had overheard their parents talking about retirement saving.
I must say, I wish I had learned what you write here in this thread. Including Law of Compound Return. I came to this much later in life. I continue to be amazed by it myself also. It is a remarkable concept.
A number of questions I got was related to if one could use stocks to get rich or if it was possible for them to get rich, so I turned those around and told them if they remember the law of Compound return that would be a way in which they could get rich over time. They seemed satisfied by that.
I also put the ratio of Price/Sales on the board. I don’t expect them to remember it. But they had learned ratios already in math also, so I thought this would be good way for them to see how math they learn can be used in real life. It seemed to work for many of them. My hope was they get idea that there are ways they can learn to pick stocks beyond “throwing a dart”. And I used that Price/Sales ratio over and over again to answer the questions they asked about how to choose to buy a stock and how to know when to sell it. I showed them how if they use special ratios like Price/Sales, they would be more likely to pick stocks that would go up in price and know to sell stocks that were too overvalued. Judging from the dialog back and forth I think that quite a few grasped part of what I was saying…at least to the point of learning that there were Rules to help guide them and they didn’t have to pick just randomly
I was particularly pleased also with my son’s teacher. On her own, outside of normal curriculum, she is making special effort to teach the kids about stocks … she made a rather profound observation, that even though we live in capitalist society our school systems are not teaching our children about what that means or how to use for themselves. It is big oversight by many of our schools. Their teacher also made good point by saying if they learned about stocks and Law of Compound Return, then they would be able to have enough money so they could pick a job or career that they loved and be able to still save enough for their retirement.
There is much more here in your ideas in this thread that I could not all fit in one session. But, I will be having more discussions, with both of my sons and will keep your advice in mind. I must say there is no way I would have felt able to teach this session with my son’s 6th grade without the past few months of significant learning about stocks through P123 and this community. My son was thrilled by the class. Thank you!!! 