Mt. Gleason Middle School Home

Mount Gleason Middle School A Community of Learners

Stay Up To DateRecent News & Events


Parent Drop-in sessions Week of 8/17/2020 Click here to view flier in English/Spanish/Armenian

Welcome Back 2020 - 2021 Students and Parents

Please register on this Google Form to be invited to our Zoom meeting according to your child's grade level. Register Once and a link will be mailed to you on the day of the Zoom meeting.

Who We AreOur Vision, Mission, and Learner Outcomes

Mount Gleason Middle School is an educational community focused on guiding adolescents toward academic success through innovative thinking, creative problem solving, and working cooperatively in order to become responsible citizens, productive community members, and lifelong learners.
Mount Gleason Middle School is committed to providing each student a rigorous, standards-based instructional program in a safe learning environment. We value all stakeholders’ voices as we support academic and social-emotional growth by teaching essential content knowledge and skills with real-world applications. Mount Gleason models respect and responsibility as our strategies nurture students’ successful transition from elementary to high school and beyond as college and career-ready young adults.
Congratulations to the Mount Gleason Mustangs!!!
Mount Gleason Middle School, Grades 6-8, is Accredited by the Accrediting Commission for Schools, Western Association of Schools and Colleges (ACS WASC) thanks to the faculty, staff, students, families, and community members working together toward achieving their vision, mission, and schoolwide learner outcomes!


Get to Know UsFacts & Numbers

  • 96.8% Average Daily Attendance
  • 26% Reclassification Rate
  • 19% Gifted & Talented
  • 0% Student Suspension Rate
  • 85% ELA Meet/Exceed on SBAC in Magnet
  • 80% Math Meet/Exceed on SBAC in Magnet

Who We AreMGMS

“Run ahead of the herd” with the Mount Gleason Mustangs! Built in 1959, Mount Gleason Middle School, including the Gifted/High Ability Magnet and STEAM Magnet, is located in Sunland-Tujunga with a picturesque view of the San Gabriel Mountains. We have a dedicated staff committed to providing each student a rigorous standards-based program in a safe learning environment where students’ academic and social-emotional needs are met. Our effective library program, accessible modern technology, and capacity-building Parent Center support student achievement in literacy, numeracy, and beyond. Students appreciate our array of elective choices, extensive lunch club options, several after-school programs, popular annual traditions, and multiple forms of recognition. Upon culmination, the Mount Gleason family strives for all students to be college and career-ready young adults as well as compassionate human beings,creative thinkers, and self-directed lifelong learners. Go Mustangs!



Math Project 2
Gallery Walk 5
Cousneling 2
Student of the Month
Graduation Caps
College Door 2
College Door 3
Math Project 7
Schoology Use
Main Office
Balloon Project
Math Project 4