Open enrollment begins December 1. For questions or to schedule a tour, please contact 303-772-3838.

Enrollment Information
Sanborn Elementary School Staff

Mary Cousineau

Email
Title
3rd Grade Teacher
Email
cousineau_mary@svvsd.org
Department
3rd Grade
Education
I have a BA in Sociology from the University of Colorado at Boulder and a MA in Elementary Education from the University of Colorado at Denver.
Bio

I’m excited to be celebrating my 21st year of teaching and my 15th year as part of the Sanborn Dragon family. Most of my career has been spent teaching third grade, which I love because it’s such a wonderful age for growth and discovery. I really enjoy helping my students become more thoughtful, confident, and independent learners.

Originally, I’m from Brighton, Michigan, but I moved to Colorado for college— and I’ve fallen in love with the mountains! When I’m not in the classroom, I like hiking and skiing with my husband, John, and our twins, Keenan and Hattie.

Recent News

Take a look at some of our recent news.

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Sep 30, 2025

Open House Dates 2025: Explore Programming Across St. Vrain Valley Schools

Across St. Vrain Valley Schools, the upcoming open houses offer families a chance to step inside classrooms, meet dedicated teachers, and discover the unique opportunities available in each school. From advanced academic pathways and innovative STEM programs to arts, athletics, and career-focused courses, these events provide parents and students an inside look at the possibilities […]

Oct 27, 2025

Sanborn Elementary Celebrates 40 Years of Learning and Community

Sanborn Elementary School marked its 40th anniversary with a celebration that brought the entire school community together to honor the past. Students and staff gathered in the gymnasium for a special assembly led by Principal Lori Peeples, who shared highlights from each decade since the school’s opening in 1985. From pop culture trends to historical […]

Oct 14, 2025

Full-Day Early Childcare: Supporting Families with a safe, enriching, and developmentally supportive environment for our youngest learners

For families of three to four-year-olds or children beginning their first experiences in a school setting, St. Vrain Valley Schools offers a licensed early childcare program designed to support families during this transition. The program provides safe, nurturing, and engaging full-day options for children ages three to four. Whether your child is currently enrolled in […]

Sanborn Elementary School