Upper School Math Teacher

Summary

The Secondary Math Teacher is a student-centered teaching role within Principia School’s Upper School. The teacher designs and delivers engaging mathematics instruction that emphasizes conceptual understanding, problem solving, and the meaningful application of skills. Using a variety of instructional strategies, the teacher supports diverse learners, fosters critical thinking, and encourages students to take ownership of their learning.

In addition to classroom instruction, the Secondary Math Teacher mentors students as a teacher, character educator, and advisor, contributing to a supportive and inclusive learning environment grounded in Principia’s commitment to character education. This role also includes participation in experiential education initiatives, such as chaperoning school activities, social events, and trips, and active engagement in the broader life of the school community.

Who We Are

At our award-winning Early Childhood through grade 12 Principia School in St. Louis, Missouri, and top-ranked Principia College in Elsah, Illinois, Principia faculty and staff make up a close-knit community of educators, coaches, and professionals taking a distinct approach to education—blending academic excellence with Christian Science-based character education. Principia’s team of over 500 employees supports not only Principia School and Principia College, but also a worldwide network of alumni and friends.?

At Principia School, our core value is LOVE. Love and its attributes underpin our foundational beliefs as well as our educational approach. We focus on developing the whole child—intellectually, physically, mentally, socially, and spiritually, preparing students for the next steps in life. We foster a challenging yet supportive environment where character unfolds naturally, and talent is cultivated through boundless opportunities. Character education plays an essential role in every aspect of the student experience, and classroom work is augmented by character trips, leadership development, and real-world, hands-on, project-based learning.

Principia employees are part of an engaging academic community preparing students to be tomorrow’s leaders, thinkers, and changemakers. We strive to create a collaborative and inclusive environment where everyone feels they belong and are valued.

Primary Responsibilities

• Display a strong interest in and commitment to working with Upper School students (grades 9–12)
• Model enthusiasm and love for mathematics and its applications
• Plan lessons that invoke student interest and ownership, connect learning to real-life situations, and meet the needs of future-ready learners to make the content relevant and meaningful
• Integrate technology effectively in a 1:1 laptop environment to enhance and redefine learning
• Incorporate future-ready skills and STEM best practices to foster critical thinking, problem-solving, collaboration, research, and communication skills
• Differentiate process, product, and content to support a wide range of learners and help each student recognize their unlimited potential
• Teach various mathematics courses with an understanding of each course’s place within the overall departmental scope and sequence
• Collaborate as a member of the Math Department to support curricular and instructional goals, including weekly meetings
• Pursue ongoing professional development and apply best educational practices while contributing to a professional learning community
• Handle discipline situations effectively in ways that support student character growth

Secondary Responsibilities

• Demonstrates a strong interest and commitment to working with a wide range of students, helping them feel successful and recognize their unlimited potential
• Demonstrates commitment to preparing students to be thoughtful, informed, and active citizens
• Recognizes character education as an essential and natural part of daily classroom and ensemble instruction
• Collaborates effectively with colleagues, coaches, parents, houseparents, and administrators to support shared curricular, instructional, and student-life goals
• Supports mutual curricular and instructional goals with Upper School colleagues through collaboration and regular communication
• Participates as a member of a departmental team, including attending at weekly meetings and collaborative planning
• Serves as an advisor to a group of 8-10 Upper School students
• Supports innovative and engaging student recruitment and retention efforts
• Pursues ongoing professional development, applies best educational practices, and contributes to a professional learning community focused on continuous improvement.
• Participates in required professional development on Monday and Wednesday afternoons
• Fulfills all responsibilities expected of a faculty member, including curriculum development, lesson planning, grading and assessment, administrative tasks, meetings, supervision, family communication, and participation in school events as assigned
• Lead and mentor small groups of students as a Crew Leader, including oversight during fall Character Trips and active participation in House activities
• Attends and supports curricular trips, festivals, service-learning performance opportunities, and school activities, including chaperoning social events and travel
• Performs other duties as assigned in support of the school’s mission and programmatic needs