I am heading into my first semester of grad school at Purdue. I will be a TA for 20 hours a week, and I am currently enrolled in two, 3 hour classes and one, 1 hour class. At this point I have the option to take a 3 hour class and conduct research with my advisor on my own time OR register for a 3 hour class specifically for conducting research with my advisor. I could use some advice on which option would be best. I don't want to get behind on coursework, but I also don't want to bite off more then I can chew. Normally my advisor would have an RA for students so he doesn't run into this problem but it wasn't in the cards this year. Any opinions would be great!