Follow these steps to upload handouts for view by registered attendees.

Upload handouts by logging in and then:

1) Click My Profile. 
2) Click My Options. 
3) Select My Presentations (at bottom of list—lower right corner). 
4) Click your submission.
5) From the submission, find pencil icon on left. Below the pencil, click the "edit files" icon (two overlapping pages)
6) After clicking the files icon, follow prompts to upload or delete files as desired. Press OK when done.   
NOTE:  Only submitter can upload a file.
If you are part of How Do You Teach Diversity? or My Favorite Assignment, your instructions from the respective moderators are similar.  Those moderators will upload a “master” handout based upon your reply/file upload to their query.