I recently gave a presentation that was poorly received by my PI. I presented a technique that I have been trying to master (Patch Clamp). My PI thought I was not adequately prepared but gave no further feedback.
I spent three days putting together my presentation and read chapters (Springer books) and papers, listened to lectures on the subject--over two weeks. I have been giving presentations since undergrad. I just finished my M.S. I hope to enter graduate school in Fall of 2012.
I don’t know what I am doing wrong. What is a more effective way to prepare a talk or presentation? How much background reading is sufficient? What types of questions do ask yourself when preparing a talk? How do you know you have truly mastered the material?