Conclusion
You have successfully completed your job as curator of the photography show. Photographers never work in a vacuum and you have hopefully seen the relationship of world events and the work of the photographers. As students of photography, you have the opportunity to incorporate some of the photographers' techniques into the work you do in class or the pictures you take at home for yourself.
Check out some of this additional information about taking great photographs.
Background Information
Formal Visual Analysis: The Elements & Principles of Composition