High School Program


Through a cohort model, students meet exclusively with students in their grade-level two to three times per week to learn developmentally appropriate academic skills.  Freshman cohorts provide an introduction to high school life and emphasize study skills, communication, self-advocacy, and core content assessment. Sophomore cohorts engage in leadership through serving others, building essential community-relations skills that will be fully realized during their junior year experience.  The junior year cohort allows students to engage in internships throughout the community. Senior cohort focuses on the completion of the senior portfolio, which demonstrates a student’s learning over time in all of the traditional content areas as well as community membership. The Portfolio also encompasses a senior capstone project: the Project stems from a unique interest of the student, and the final product represents the depth and breadth of the student’s ability.


Advising is the heart of Trillium’s democratic practices and relationship-building, and the place where we hold each other accountable to the High School Core Values. This is a place for students to practice and participate in democracy through class meetings once a week, community building and development and feedback of school policy. Advising provides a flexible space to meet a variety of student’s needs including: modified academic support, goal setting, scheduling, counseling, field trips, and advising fun days.

Integrated Classes

Integrated classes are interdisciplinary courses led by two core-content teachers for ninth and tenth grade students. This allows students to more fluidly make connections between seemingly disjointed topics or lessons. Integrated classes include Global Inquiry, co-taught by language arts and social studies teachers, Integrated Science, co-taught by mathematics and science teachers, and Economics, co-taught by social studies and mathematics teachers.  Through these courses, students:

  • Increase the relevance and applicability of knowledge.  Seeing the applications of each subject allows for context-rich learning.
  • Efficiently earn credits, which creates more flexibility for Internships and Senior Projects during eleventh and twelfth grades.
  • Engage in smaller classes, with teacher to student ratios of 1:12.



The Trillium Charter School Internship Program connects academic life with professional experience by providing high school students the opportunity to develop their skills alongside working professionals in the community. By actively engaging their education and passions in the workplace, students in the program are better prepared for employment, more confident in their skills and more knowledgeable of opportunities following high school. As Juniors, students research, apply for and obtain an internship at an organization of their choice. Students earn academic credits through this program by completing projects designed to support the internship experience. Internships can vary in size and scope depending on the students educational goals. A typical internship will be done the junior year, during the school day and meet appropriately 8-10 hours per week.

Core Values

In every interaction, space, and environment, Trillium High School students and staff seek to foster the developmentally appropriate principles of:

Self Awareness: Encouraging self-discovery, self-acceptance, and self-leadership as means to personal growth, and self accountability.

Citizenry: Fostering responsibility and integrity as community members and global citizens.  Supporting an environment that is informed, culturally sensitive, and just.  Creating a caring community that comes together in joy and gratitude.

Preparedness: Developing academic, social, artistic, and personal tools and strategies for living fulfilling, and productive lives.

  • Engaging, relevant, meaningful, and challenging class work and programs
  • Democracy & Peaceful Conflict Resolution: class and high school meetings, mediation, and collaborative problem solving
  • Advisor-Student-Parent Relationships
  • Service Learning and Internships
  • Playing together, during flexible times, Adventure Days, and Advising
  • Flexible, personalized learning opportunities
  • Choice: Consistent opportunities to use unique passions and interests in the demonstration of learning.


Democracy: Democratic education means that teachers at Trillium build and maintain an environment that honors all voices. Through a variety of routines such as class, age-level, and all school meetings and utilizing a peaceful resolution process which includes intentional conversations and mediations, teachers and students develop the essential skill of listening to one another and maintaining healthy relationships.

Leadership: The high school program provides the sophomore class an opportunity to connect to the community around the school and within the walls of Trillium. With the support of a sophomore cohort leader, students explore service learning while developing skills that promote self-advocacy, relationships, empathy, and independence.