The typical day is that I am assistant when professor is in a lab and hand out homework and answer questions that student asked in a lab. In a lab, I have learned a lot . For example , I can sharpen my knowledge what I learned in class. The hardest part of the job is that I can not answer all questions that students asked. That's where I should improve. The most enjoyable part of the job is that I CAN help my students and make good friends with them.