Worthwhile. I participated and completed it in an accelerated fashion,. Basically, there are 2 courses you must take before taking anything else, these take a couple months to complete. After those you will complete the other 3 courses or so that are needed there after. You are able to register for the courses prior ro the completion or beginning of any. You need a 75% to pass the class. (if I remember correctly). I hope this information is a good start.
Resource:
https://collaboratingmiette.wordpress.com/ib-pyp/teaching-and-learning/
(someone else who wanted to collaborate the same way I am here, it is nice knowing I'm not the only one)
