This document contains 4 student responses to a discussion on writing business emails. The first response lists 5 major points about writing concise, well-formatted emails with the key message up front. The second response emphasizes using courteous language and short, clear sentences so the reader can easily understand. It also notes the importance of distinguishing business emails with the subject line. The third response discusses difficulties understanding a computer science experiment due to complex calculations and small writing on the whiteboard. The fourth response acts as the editor and does not provide any additional content.