Cooperative preschool schedules open house The Allentown Cooperative Christian Preschool, 23 Church St.,Allentown, is holding an open house from 6-8 p.m.March 12. The school offers open enrollment for preschool children ages two to six, an afternoon enrichment program and a summer program. Children and questions are welcome. For more information, call Robin at (609) 259-0885.