The Prime of Miss Jean Brodie by Muriel Spark

When an unbridled schoolmistress with advanced ideas is in her prime the classroom can take on a new identity and no one can predict what will happen. Jean Brodie is a teacher whose unconventional ideas put her at odds with the other members of staff at the Marcia Blaine School in Edinburgh, as she endeavours to shape the lives of the select group of girls who form her 'set'.