My method for studying all of my classes is the same - about 20-30 minutes per class 2-3 times per day, every day as a constant review. I review the pp, and I review my own notes. Then 2 -3 days prior to a test/quiz I re-write my notes, then review the text corresponding to the pp and notes from lecture. I do this each day, 3 days in a row before the annoucned test/quiz. I cannot sit for hours on end studying, I lose interest and get antsy, so I break it up. It works well for me. When I struggle with something I write it over and over and over until I get it. I use my own notes, plus the pp, plus the text to get like 3 different perspectives on the same material, which also helps. I have pharm now and A&P 2 and have a perfect 100 average in each class.