It's different in different place so ask your instructor not a bunch of geeks at computers
As I understand it, KG is normally done ura (to the rear) with a tenkan. It can be done omote with a tenkan though too. Some places differentiate this way, others by the size of the tenkan, or by doing another tenkan or an irimi movement after the first blending tenkan - on the ura side.
Hope that helps some, can't do any of them myself.
Anyone got pictures handy?