Several central Ohio school districts are delaying the start of classes as freezing rain passes through the region early Tuesday, and motorists are urged to show caution during the morning commute. Big Walnut, Buckeye Valley, Delaware, Jonathan Alder, Marysville and Olentangy schools are among the districts on a two-hour delay.adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-LOCAL","nativepaywallcategory" : "NATIVE_PREM-LOCAL"};