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Middle School Math Teacher

Job in O'Fallon, St. Charles County, Missouri, 63366, USA
Listing for: The Principia
Full Time position
Listed on 2026-06-22
Job specializations:
  • Education / Teaching
    Middle School, Teacher Assistant/ Paraprofessional, Academic
Salary/Wage Range or Industry Benchmark: 60000 USD Yearly USD 60000.00 YEAR
Job Description & How to Apply Below

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Middle School Math Teacher

Regular Full-Time Full Time BE St. Louis, MO, US

30+ days ago Requisition

Title: Middle School Math Teacher

Department/

Location:

Middle School Faculty, St. Louis

Position Type: Full-Time, 39 week

Summary

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.

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
  • Teaches 6th , 7th , and 8th grade classes, including daily lesson planning, regular pretesting, and backwards design of units (utilizes the Understanding by Design curriculum framework)
  • Differentiates for multiple levels within each class
  • Communicates with the Learning Engagement Center about student needs and push‑in/pull‑out services
  • Serves as a resource for Lower School teachers in their curriculum design and instruction
  • Helps organize the administration of standardized testing and analyzes the data for trends; makes decisions about instruction and specific student intervention in response to the data
  • Assess student understanding and skill level using rubrics and a proficiency scales
  • Follows the curriculum with pacing and student engagement in mind, as well as supplements the eighth grade curriculum with Algebra 1 Common Core standards
  • Meets and communicates with students and parents regarding student growth
  • Participates in weekly faculty meetings
  • Assess students in their approaches to learning
  • Creates and edits unit plans for each unit of study
  • Participates in yearly goal‑setting and frequent one‑on‑one meetings with supervisor
  • Reflects on teaching and learning regularly and improves practice
  • Completes the required portfolio, including walkthroughs, school visits, reflections, and goal‑setting
  • Attends conferences (could include Math in Focus, National Council of Teachers of Mathematics)
  • Participates in and contributes to weekly and yearly professional development sessions
  • Communicates timely and effectively with students, parents, and administration
  • Engages in professional learning experiences that support school initiatives
  • Actively collaborates with colleagues across levels and departments to support the implementation of school‑wide initiatives
  • Participates in various committee meetings, faculty and parent meetings, and professional development
  • Supports Middle School activities by chaperoning social events and trips
Core Competencies
  • Continuous Learning & Expertise: Demonstrates mastery in your area of…
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