Did some more work on grammar, and I think I am slowly starting to get the hang of it. Unit versions are another area I understand, thanks to John's video. The only iffy area today was the one on mean and median. Specifically, the ones that were asking if the mean of the new dataset is less than or equal to, or something like that. I tried to answer it without manually calculating everything, but still got it wrong. We will see how I do tomorrow. I will start working on those problem-solving and data analysis questions. Btw, does anyone have any tips for the math section in terms of timing?