Quote & Link from Complexity Explorer:
Updates from Complexity Explorer:
February 3, 2015
We are offering a new kind of educational resource: a tutorial. A tutorial is like a course, except that its units are relatively independent, and it does not have a start or end date, and is available indefinitely. Anyone can enroll at any time. The units are entirely self-paced. There are no end-of-unit tests or grades.
We have moved our “Mathematics for Complex Systems” course into this tutorial format. If you were enrolled in this course, you don’t have to change anything, and you won’t see much difference, except that there is a new listing on the “Online Courses” page for tutorials.