Immediate Impression given by the course

First week's lectures really confused me because the content was basically about high school math or even simpler. I was nervous about not being able to find the hidden insights at first until we handed in those in-class assignments and were told the most of us had done it wrong. Sometimes, we take logic and expressions for granted and never give a second thought if our expression has an another way to understand. That may cause a serious problem in the field of academic. However, although I am aware of it and being trained to express precisely, I still find it challenging as a non-native speaker. Guess I need to work harder in order to get the most out of this course.