Played the Global Trading Game in freshman Geography today. It took some time over the weekend to set it up but the kids seemed to enjoy it. They liked the challenge of mining for resources and the strategy of intense trading to obtain the necessary resources.
If you play this one, be prepared to withhold information. They kept wanting to know if they had found all their natural resources. I refused to tell them, pointing out that's the reason we continue to explore for more oil. They also wanted to know about the impact numbers on the backs of the cards. Those aren't explained until the third round giving the game a new twist towards the end.
The only drawback I noticed was that 45 minutes did not feel like enough time. We finished the game but didn't have much time for quality discussion afterwards. I think everyone "got" the point but sometimes it's hard to tell.