Actually, I left the situations open-ended for the teacher to create. For example, I would announce a storm (sandstorm for the desert), write the situation on the board, and the students would fill out their sheet based on that(since their worksheet is generic). I used a lot of nature sound CDs to add to the experience (or shook their tables for an earthquake). Feel free to get as creative as you like with the situations (I even sprayed my students with water for a rainstorm).
As far as the other worksheets, the grid sheet with "Shelter," "Food," etc. is the information sheet that each band will have to complete based on their climate zone, using the information in the textbook.
While you can give the students as many situations as you want, there are worksheets that are aligned with the textbook also. The students will still have to work together in their band, but they are working on the academic information.
The worksheets to be used with the textbook have the page numbers from the textbook on them.
Every day, I had my students answer warm-up questions for the first 10 minutes in class based on the lesson we were on, and then we moved onto the simulation. I would have the students do a worksheet a day, but some of the activities took a little longer. My students loved trading, so we did the trading activity on a few occasions.
I stopped the simulation at complex villages, but the simulation was meant to potentially go on until all groups combined to form the first civilization. I am still working on expanding it.
The simulation took me 3-4 weeks to go through, but it can be shortened or extended. Depending on your pacing, you can probably get it down to 2 weeks, or up to 6 weeks.
I hope this helps. Please do not hesitate to message me again if you have more questions. I hope your students enjoy it. Mine had a blast with it.
July 24, 2012