revision strategies

Our group is doing revision strategies 10.11 through 10.15 we each did one except i did 2 cuz i told my group i didn't care and now we r goin to meet in the library and discuss a strategy to give our presentation.  I'm kind of scared to give this presentation because we had a sub on tuesday so i'm not really sure what to expect.  I just want to get it over with and hope we do well.