Why can I post in some places and here but not under "Science Education"?
You should be able to. Which forum, specifically, did you try to post in? What message was displayed when you tried to post?
Check to see if the thread is locked before you try to post. You cannot post in locked threads.
Math & Science Learning Materials
then I got
arydberg, you do not have permission to access this page. This could be due to one of several reasons:
1. Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
2. If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.
Please read the announcement at the top of the forum: https://www.physicsforums.com/announcement.php?f=151 [Broken]
How do i get to be a Mentors or Science Advisors or Homework Helper?
You make enough quality posts and are active enough for the other HHs / SAs / mentors to notice you and nominate you when Greg (the Admin) asks for nominations for new or replacement positions. (This process doesn't happen in the public forums, by the way.)
Separate names with a comma.