It is observed that new members are posting study related discussions in general discussion/forum , that is not appropriate. Here you can easily know how to post study related discussion ( past papers, quiz, assignments/ solutions / ideas / answers / replies) in study groups.
bring your MOUSE POINTER on "STUDY ZONE" in given tabs on top of window
then Click ON the subject Group you want to post some study stuff
Here Click on "Add a Discussion"
after clicking a Add discussion window will appear
give proper title/ add stuff / upload file here
your discussion will be added in related group.