Lessons for computer-evaluated courses are scored by computer; this speeds up lesson-response time and provides computer-generated feedback that helps students review lessons and study for exams. Lesson questions in computer-evaluated courses are either multiple-choice, matching, or true/false.
Assignments for instructor-evaluated courses are graded by an instructor. Lessons for instructor-evaluated courses may be submitted by mail, via email, by fax, or online, depending on the nature of the assignments. Instructor-evaluated lessons, which can include essays, math problems, audiocassettes, drawings and artwork, are generally graded within five working days.