We're O Positive.

O Positive is more than a slogan for us.
It's our way of telling a story of the many
successes that are deserving of Ontario's pride.
Are you ready to be a part of our story?

OSD News and Publications Archive

OSD is proud of our past students, awards and events.  Here you can find an archive of articles, newsletters and press releases.

Jogs For Funds

The Annual Cairo Jog-a-thon fundraiser was held on a beautiful fall day.[more]

From Seniors to Graduates

On a clear Sunday in May, the class of 2009 held their graduation ceremony at the Ontario High School Stadium. [more]

Registration Dates 2014-2015

Registration begins the week of August 11 [more]

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