The Principia·Des Peres, Missouri
The Middle School Math Teacher teaches mathematics to sixth, seventh, and eighth graders, utilizing various teaching methods and collaborating with faculty and parents. Responsibilities include lesson planning, assessing student understanding, and participating in professional development.
Title: Middle School Math Teacher
Middle School Faculty, St. Louis
Position Type: Full-Time, 39 week
The Middle School Math Teacher facilitates engaging mathematics lessons for sixth, seventh and eighth graders using a variety of teaching methods to meet student needs, mentors students as their teacher and character educator, and collaborates with faculty and parents meaningfully. Full-time, school-year position.
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 [https://www.principiaschool.org/about/belonging-and-community].
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 [https://www.principia.edu/debm] where everyone feels they belong and are valued.
Principia values the unique strengths each employee brings to their role. The following competencies are especially important for success at Principia:
Continuous Learning & Expertise: Demonstrates mastery in your area of responsibility and seeks opportunities for professional growth and development.
Accountability & Results Orientation: Manages time and priorities effectively, meets commitments, and consistently delivers high-quality outcomes.
Problem Solving & Judgment: Approaches challenges thoughtfully, considers multiple perspectives, and makes sound, timely decisions that support institutional goals.
Proactivity & Ownership: Takes initiative, anticipates needs, and drives projects forward with minimal supervision while taking responsibility for outcomes.
Excellence & Attention to Detail: Produces accurate, polished, and high-quality work; continuously looks for ways to improve systems, processes, and results.
Service Orientation: Builds positive, supportive relationships and responds promptly and professionally to the needs of students, colleagues, and other stakeholders.
Collaboration & Collegiality: Works cooperatively across departments and teams; values input from others and contributes to a positive, respectful environment.
Communication: Shares information clearly and concisely; listens carefully to others and adjusts communication style for different audiences and situations.
Inclusion & Belonging: Demonstrates respect for all people; values diverse perspectives and fosters a culture of inclusion, belonging, and mutual respect.
The statements above describe the general nature and level of work but are not a complete list of responsibilities and are subject to change at the discretion of Principia.
Compensation and Benefits
We offer a competitive salary range for this position, starting at $51,000 annually for candidates with a Bachelor’s degree and no prior teaching experience. Salary is commensurate with degree and years of teaching experience.
Principia, a mission-driven institution, believes every person has the right to an equitable and respectful educational environment and workplace. Principia does not discriminate on the basis of race, color, national origin, ethnicity, gender (identity or expression), sexual orientation, family status, disability, age, or military or veteran status.
In hiring, admissions, and related decisions, Principia—as an institution with a religious mission—gives preference, where appropriate, to Christian Scientists.
A bachelor's degree in Math or a related field is required, with a master's degree preferred. Relevant teaching experience with middle school students is also necessary, along with a teaching certification within two years of hire.
Market context
Middle school math teachers are often in steady demand across Missouri, especially in districts and schools serving grades 6–8. This role is competitive because employers typically look for a bachelor’s degree, current state certification, and prior middle school math experience, with Catholic school settings also valuing a commitment to Catholic education. Review the AI-summarized requirements and benefits here to save time, then tailor your application to highlight certification, math content strength, and relevant classroom experience.