For someone who didn't really attend the lectures, this class was pretty easy to get through. The professor is really sweet but his lectures are kinda boring and hard to get through as someone who isn't interested in astronomy. I actually really enjoyed the labs though, my TA was Philip and he was really helpful. Just make sure you join a breakout room with people who talk and help each other out. I got low Bs on the two midterms and an A on the final. The extra credit helps a lot though.

The final was way harder than the rest of the class. Dropped me from an A+ to an A-, and I did better than the class average. No curve at all. The class overall was fine, but keep an eye out for the final.

This is my second class with Professor Treu because I thoroughly enjoyed taking ASTR 3 with him. I did well in the class, but I know that the midterm&final were not the easiest and that others struggled with those. My advice for future students would be to attend every lecture and TAKE NOTES + try not to rely on the fact that they are recorded and then skip because it is super easy to get behind. Also be sure to practice the math that is presented in the discussions. If you do that you will be fine.