"I go in that direction."
Translation:저는 저편으로 갑니다.
I read in a different comment section that they mean the same thing and are interchangeable. One is an originally korean word and one is rooted in chinese (like many korean words are), I don't remember which is which though. But I've noticed that in these duolingo lessons 편 gets translated to direction or side and 쪽 to way.