Discussion entries must be 50-100 words, thoughtful, and relevant. Entries will not be graded, but they will be evaluated. Entries which do not meet these standards will be deleted and will not count toward you tier 3 requirement. Tier 4 A Meet the tier 2 and 3 requirements, and earn 63-70 of 70 points in exercises from your best 7of 9 units. That is all you have to do to earn an A in the course.
Exercises are of two types, virtual field trips or essays.
Virtual field trips can be accessed through the course web-site. They take you to geologic sites world-wide, present material, and ask you questions. You must answer the questions, and submit them in the Exercises folder of the course web-page. Essays questions are posted on the course web-page. Although Session C officially ends on July 21st, the last two units will close after that date.