You can homeschool in OH. Most of the PG kids I know of in Columbus do.

St Joseph Montessori comes to mind as well as another option for k-8.

DD had an excellent k year at Ecole Francaise. They accelerated her from k to 3rd in math. She was in a class of 10 kids, most where in first, so it was perfect for her. The school is relatively small. There is a mixed ages elementary class. Its much more modest in cost and doesn't have the bells and whistles as where she is now, but for prek/k it was perfect.



Warning: sleep deprived