To improve our writing, Professor Shen had us read and listen to many grammatical concepts , rules, and punctuation. One of the main punctuation marks I learned about was the comma. In late April, I was given a homework assignment to practice inserting in the proper places and erasing commas in improper places. When my professor proof read our essays, my main grammar errors involved commas so I chose this assignment to show my improvement in my ability to use commas properly. After reading the required pages, I was able to understand the rules of using commas and I did not get any points taken off of the homework assignment. One of the main rules that confused me before was where to put commas when using quotation marks in a sentence, and I was able to practice in the sentence, “ 'I may be a man of few opinions,' said Henry, 'but I insist that I am neither for nor against apathy. ' ” I properly inserted two commas and know that I was using them correctly.