Distinguishing "Presentations" and "Experience" in CV for application for Ph.D I'm working on a CV for a Mathematical Sciences Ph.D program. Though I don't have any papers published, I have contributed to a number of research groups and given some hour-long presentations. I also did some presentations as part of my capstone projects in both of my undergraduate majors (math and chemistry). I thus think it's valuable to have a "Presentations" section on my CV for now until I have papers published.

However, some of the info in the "Presentations" section would necessarily overlap with some of the info in my "Employment" section, e.g.:


"Developed and presented an improved C algorithm for [analyzing
simulations for xxx structure] using [mathematical
technique]."
"Presented a literature review on [use of a mathematical technique in
simulation] including a detailed overview to the research
group on [mathematical algorithm used for analysis]."


How can I distinguish the two sections? Should I emphasize the content of the presentation more in the "presentation" section, and my day-to-day routine more in the "employment" section?

Any other suggestions?
How can I distinguish the two sections? Should I emphasize the content of the presentation more in the "presentation" section, and my day-to-day routine more in the "employment" section?

Answer #1) I would distinguish the two sections by calling one, "Presentation Experience". The ability to execute lengthy and quality presentations is a very valuable and rare capability. Not many people can do it well. I consider myself to be a poor presenter and I've personally witnessed people who present worse than I would. By all means, accentuate your presentation experience by providing as much context as possible. Let the reader feel like they can almost "see" the presentation as it took place.

Answer #2) I don't think it's detrimental if there is a little overlap between your job duties and your presentations. Simply don't provide much or any information about your presentations in your job duties section. You might mention that one of your current job duties is to make oral presentations as required/needed.