The tone rose sharply in September 1979, a few months before the referendum on sovereignty in Quebec, when French speakers in the Penetanguishene region opened the École secondaire de la Huronie, a parallel and illegal school.

At the same time, in July 1986, the Ontario Superior Court ruled in favor of Jacques Marchand in his 1984 lawsuit against the province and the school board, culminating in the Sirois judgment.

The ruling forced Ontario to invest $ 5.7 million to expand the Le Caron School so that it could offer services equivalent to those provided to the English-speaking majority.

For more information on the history of the Franco-Ontario crisis in the region, visit the "Penetanguishene and The School of Resistance" pages of the virtual exhibition "Présence française en Ontario: 1610, passeport pour 2010", on the University Of Ottawa website: Centre de recherche en civilisation canadienne-française (CRCCF) Over the years the school has moved from its original building on Main Street to 22 John Street, where it currently resides.

Ecole Secondaire Le Caron has many extra curricular activities which students can participate including: Volleyball, Basketball, Hockey, Orchestra, Jazz band and Improv.