If appropriate, call the client: Who's in the class? What are their jobs? Special needs? Intact group?
Call the classroom coordinator and sysadmin: Classroom setup, projectors, computers
For overhead: Foils, blanks, pens
Sign-up sheet (print it from our web site)
Workbooks, handouts, textbooks
Check the room (early!)
Roster
Comfort: heat, ventilation, glare, noise
Computers: software, files, on-line exercises, network access
Computer projector, overhead projector
Whiteboard, flipchart, markers
Spare bulbs
Name tents
Eval forms