Come and find out what school was like in “the old days.” The Barkhamsted Historical Society’s one room schoolhouse, the old Center School on Center Hill Road (Rt. 181) just north of the intersection with Beach Rock Road in Barkhamsted, will be open the last Sunday of each month May-Sept. from 1:00 to 4:00 PM.  Ask questions; read the old books; review a high school entrance exam; try your hand at various toys and games, or do some arithmetic problems on a slate.