I'd say the same thing.
The Help catalog in Inventor (from Help menu) is how some of our Tech Ed program's most successful CADers became successful.
FIRSTbase (the website where teams can download the software - if you don't have a username, ask your team main contact/mentor to add you) has training materials:
http://firstbase.autodesk.com
Also look in the Inventor folder on the computer:
C:\Program Files\Autodesk
Inside Autodesk is an Inventor or Inventor 11 folder. Then look for a PSS folder which will contain a few PDFs:
Adsk_Inventor_11_GetStart.pdf will help you learn step by step all of the functions involved with part modeling, assemblies, and drawings.
AIProf_11_RoutedSys_GetStart.pdf will explain how to use Tube & Pipe and Cable & Harness
AIProf_11_Analysis_Simul_GetStart.pdf is for Stress Analysis and Dynamic Simulation
Sean Dotson's site has a ton of tutorials for more advanced things:
http://www.sdotson.com/tutorials.asp
J.D. Mather's site has tutorials for surface modeling/complex shapes:
http://home.pct.edu/~jmather/content..._tutorials.htm
Autodesk's website also has some intermediate to advances tutorials.
Now, the AIProf guides and advanced tutorials would take a LONG time to get a working knowledge of because it's so involved. Unless you have a number of hours every day this week and a lot of patience, I recommend just using the FIRSTbase training materials for now so you have enough time to model the robot.