Founded in 1995, the Missoula International School (MIS), a nonprofit, independent preschool through eighth grade school, offers unique and challenging 21st century educational opportunities for students in the greater Missoula area. In 2009, MIS became the flagship school in the Northwest as a Primary Years Program (PYP) International Baccalaureate (IB) World School. The school provides an inquiry based learning environment through an IB education in a full Spanish language immersion environment within a multiage setting. Full language immersion has been proven to increase cognitive development, literacy, cultural understanding and self-confidence. This approach along with class sizes that allow for individual attention and deeper relationships within the school community results in inquiring, knowledgeable, confident and caring global citizens.

MIS offers:

  • an independent preschool through eighth grade educational choice to the greater Missoula community
  • inquiry based learning environment that inspires creativity and critical thinking as the flagship PYP International Baccalaureate (IB) World School in the Northwest
  • a full language immersion environment which research proves increases cognitive development, literacy, cultural understanding and self-confidence
  • a 21st century education using a STEAM (Science, Technology, Engineering, Arts, Math) based teaching approach
  • a safe and nurturing environment that promotes freedom of expression and a culture of collaboration in a multiage setting
  • class sizes that allow for more individual attention and deeper relationships within the school community
  • an academic culture that promotes individual responsibility and equips students to take action as locally and globally-minded citizens
  • a learning environment that encourages academic and artistic risks to develop confidence and foster a well-rounded individual
  • a  multicultural environment that connects students with people of diverse and international perspectives
  • Preparation for MIS graduates who consistently excel at upper level academic high school and college classes, travel the world and communicate in multiple languages, and contribute to their community in multiple ways.


Frequently asked questions about our program:

What is the Primary Year Programme (PYP)?  

MIS is an international Baccalaureate World School authorized to provide this educational framework.  Founded on a philosophy that recognizes a child’s natural curiosity, creativity and ability to reflect, the PYP generates a stimulating, challenging learning environment to nurture those assets and foster a lifelong love of learning.  The PYP promotes integrated, inquiry-based learning  through the units of inquiry that comprise the core curricular content for students.

What are multiage classes?

MIS classes are organized in a multiage framework.  This framework allows for collaboration and learning in variety of ways.  Older students benefit form the qualities of leadership and responsibility they develop while younger students benefit from the mentorship and modeling provided by their older peers.  Multiage education provides an authentic learning environment where individual needs can be met and a student-centered educational experience.

What does Spanish immersion look like in the school?

In preschool through 5th grade, all of the traditional subjects-language arts, science, social studies, math – are taught IN Spanish.  MIS students learn the content of a primary grades curriculum while learning a second language.  In preschool through first grade, 100% of the classroom time is spent in Spanish while one hour of direct English instruction begins in second grade.  In middle school, students learn about ancient civilizations and Spanish grammar two hours each day.

What role does STEAM play in the learning at the school?

The integrated approach to science, technology, engineering, arts and math complements the inquiry based learning of the PYP.  Students in kindergarten learn basic programming and collaboration through Lego® Robotics. Beginning in second grade, student have a technology class while also making use of the laptops, iPads and Chromebooks for research and project-based learning in the classroom.  Students participate in the design process to create projects printed on one of our 3D printers.  MIS also offers additional afterschool activities in robotics, art, Math Counts team and First Lego®League Team.