Wiktionary
school classes
n. (school class English)
Usage examples of "school classes".
The First Methodist Church of New Lebanon announced today that Sunday school classes will be canceled until further notice following the vandalism of the school by the man authorities are calling the 'Moon Killer.
He certainly could not remember much that had happened to him before that, except that he came originally from Nebraska and that he had once attended high school classes with a red-haired, bandy-legged boy named Charles Starkweather.
A weathered picnic table flanked with benches was set up close by where I pictured Sunday school classes and church suppers during the summer months.