Phone: (406) 728-2400 ext. 7635


Degrees and Certifications:

Ms. Margie Dennison

Greetings mathematicians!  My name is Margie Dennison and I am so happy to be a mathematics teacher at Sentinel High School.  

This year, I am teaching Algebra 1 and Geometry.  To find specifics about your class, visit the tabs to the left which will have links to the appropriate google classroom.  During this hybrid learning situation, all assignments, lessons and activities will be posted in Google Classroom.  


Please feel free to reach out to me by email,  Thank you.  Here's to the new school year!  Take care.