Room interior should have:
Window
Door
Art on wall
Bed
Table or desk
Chair
Rug on floor
Electronics equipment
Your grade:
Whether the model is complete
Whether the model is well constructed
Whether color and materials have been applied to all elements and on all visible sides
Use of appropriate file format and file name
Smoothness of animation
With Sketchup open, go to File>3D Warehouse>Get Models to get ideas for room layout
Try Popular Models
links
google 7 sketchup for dummies
introduction video
dusting off Sketchup's drafting tools_basic drafting tools
http://www.youtube.com/watch?v=6MtjHKxEW4M&feature=channel
http://www.youtube.com/watch?v=m6PODAj-RBg&feature=channel
putting in interior walls
http://www.youtube.com/watch?v=-BqjDnmx90A&feature=related
importing files into sketchup
http://sketchup.google.com/support/bin/answer.py?hl=en&answer=36217
build a basic room using google sketchup 7 8:30
http://www.youtube.com/watch?v=vopj3TwHK-I&NR=1