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The O-Zone – A Place for Fun, Learning and Enjoyment

Members of the community, former and current students, and colleagues remembered Mr. O at the Heiman Elementary gymnasium dedication on Wednesday, May 15, 2019.

Known to his students as Mr. O, Osentoski taught in Greeley schools for more than 30 years, ending his career as the physical education teacher at Heiman Elementary. He was known for his kindness and dedication to teaching all children.


Heiman Elementary Principal Ann Ramirez said a group of friends and retired teachers began talking about renaming the gymnasium before Mr. O passed away. The group met and involved community members in gathering suggestions, eventually reaching consensus on a recommendation to the Board of Education.


The gymnasium will now be known as “The O-Zone – A Place for Fun, Learning and Enjoyment.”


“Mr. O was one of the finest people I ever knew,” said Board member John W. Haefeli.