Today I had class, I spent the morning researching the topic I will give a presentation about on the last day of class. Me and Justin's topic is curvature in Riemannian space, Justin has taken a class on general relativity, so he understands some of the applications of what we're presenting. Later we went to class and had our second lecture on symplectic geometry. From talking with the PKU students it seems that the education system in China and the U.S. is very different. The students at PKU are taught math earlier than we are, some of the classes we take our junior year of college, they take their freshman year of college. After class we sat at a restaurant outside and ate some noodle soup.