A few more helpful things. It says that the single player Evolver game is quite large. Here are the technical reqt's: http://www.tabuladigita.com/support/systemrequirements.html

I also realized that once you have a username and password and can log in on www.tabuladigita.com and click on the "learning center," click on a "module," and then launch the "instructional module" where there are explanations and activities. The explanations in the journal area of the game itself were pretty much just summaries. The instructional module appears to actually teach the topics. So we got more than we bargained for. smile