Lesson has no misspellings or grammatical errors. Screen Design Screens are either confusing and cluttered or barren and stark. Buttons or navigational tools are absent or confusing. Screens are difficult to navigate, but some buttons and navigational tools work. Users can navigate a few screens.
Screens contain adequate navigational tools and buttons.
Users can progress through screens in a logical path to find information. Screens contain all necessary navigational tools and buttons. Users can progress intuitively through screens in a logical path to find information. No video, audio, or 3-D enhancements are present or use of these tools is inappropriate. Limited video, audio, or 3-D enhancements are present.