Below are the recitation notes that I used while I was a grader for Math 2255 at the Ohio State University in the Summer of 2020. Technically, holding recitations for the students was not part of my job assignment, but I decided to do so anyways in order to practice my online teaching. Here is a survey that shows the effectiveness of my volunteer teaching. For the documents that are typed, I have also separately included the source files incase any other instructor wants to use a modified version of them in their own courses. My latex source files use this class file.