Currently a student in BA3 Bio-engineer, I understood that to pass a course must at all costs understand it. That's what I'm going to try to teach you. While approaching the problems in several ways, we will try to understand the "why and how" is happening. Once one understands, everything is more than calculation or logical sequence. Each course will be meticulously prepared because these subjects are like the bike; we forget quickly but once we take them back it comes back. I can also give extra exercises and / or homework as needed.