<p>So when I had taken the class, it was just a elective, and I didn't make much effort to participate in class (big lecture hall) or build a relationship with the professor outside of class. I want to ask the professor to write me a letter of rec for a summer program, and the topic of the summer program is directly relevant to the class I took with him. I got an A in his class and attended all the lectures. </p>
<p>If I make an appointment with him and just introduce myself and give him some background info on myself and why I want to be in the program, would it possible that I could get a letter of rec for this summer program that I want to participate in?</p>