The middle school , Marquardt , is the district 's school .
District 15 has four elementary schools , G. Stanley Hall School , Winnebago School , Blackhawk School , and Charles G. Reskin School .
The middle school , District 15 , is the district 's school .
District 15 has four elementary schools , G. Stanley Hall School , Winnebago School , Blackhawk School , and Charles G. Reskin School .