Go here to learn about registration and eligibility, http://www.berkeley.k12.sc.us/AIMS.cfm?subpage=525.
Berkeley County School Board, District 6
it is the district site and has school calendars for each school(Goose Creek is there) and contact info.
You can also use the district site to contact someone who can tell you what schools you are eligable for..
Good luck, Dunes