Fourth Week--------Change!

Last Friday, we had the second exam in Physics 0110. Students got back their exam results, and we saw the overall statistics of the whole class which is not quite satisfactory. Students reflected that this exam was harder than the first one after they finished the exam. I agree because some questions are hard to understand. But generally speaking, it is still a fairly fundamental exam. It tells me that I need to do some changes from now on---go back to basis.