High School Math Teacher

Company: Uncommon Schools
Location: Lexington
Posted on: February 5, 2026

Job Description:

High School Math Teacher at Uncommon Schools summary: The High School Math Teacher at Uncommon Schools teaches mathematics courses including Algebra, Geometry, and Calculus to prepare students for college-level work while fostering critical thinking and problem-solving skills. They collaborate with peers, analyze student data, and support student social-emotional development through positive relationships and engagement with families. The role requires a bachelor's degree, a passion for math education, and the ability to obtain required teaching certifications within the first year of employment. Company Description Uncommon Schools is a nonprofit network of high-performing public charter schools dedicated to providing an exceptional K-12 education in economically disadvantaged communities. Operating in Boston, Camden, New York City, Newark, and Rochester, we are committed to closing the college completion gap and preparing every student for college and beyond. Our students consistently exceed national benchmarks , reflecting our dedication to their success. We invest deeply in our educators , offering weekly coaching, feedback, and professional development to ensure excellence in teaching and leadership. Join us to work hard, do good, and make a lasting difference! Job Description Uncommon High School Math teachers work in grade teams and content teams to push students towards being self-guided learners. Our teachers become experts in their course content, and have a keen sense of how to motivate and inspire high school students. At the heart of all math classes is a deep joy for mathematics. Math teachers use a variety of instructional strategies to cultivate student awareness of how to make sense of, persevere through, and solve problems. At the conclusion of high school, students are prepared for academic autonomy and college preparatory work. Responsibilities 1. Instruction You'll use a Math curriculum to teach content that may include Algebra, Geometry, or Calculus and prepares students for Advanced Placement (AP) and collegiate level coursework. You'll support students as they solve problems and think critically. You'll use your love of mathematics to foster confidence and meaningful engagement with the subject for students. You'll cultivate the ability to construct and justify viable arguments using reasoning, math vocabulary, tools, and postulates. You'll use your passion for mathematics to build a community of self-guided learners where students feel safe, confident, and engaged. You'll work with the Math department to determine academic and engagement goals for students. 2. Data Analysis You'll meet weekly with your principal and/or instructional coach to analyze and respond to trends in student work samples and assessments. You'll learn and implement strategies to differentiate instruction for all learners in your classroom. 3. School Culture You’ll build positive relationships with students to ensure they feel seen, loved, and heard. You’ll partner with students’ families to ensure appropriate resources are available to support their child's learning needs. You'll engage in practice-based professional development, mentorship, and coaching sessions. You'll participate in weekly, school-wide meetings to cultivate community, model our core values, and encourage student achievement. You'll partner with your grade level team to develop academic goals and practice instructional strategies. Qualifications A demonstrated commitment to supporting students’ social emotional and academic development An enthusiasm for collaborating with internal and external partners in the best interest of students A self-directed learner who solicits and implements feedback to improve outcomes and achieve objectives Required Experience: A demonstrated interest in impacting K-12 students in urban schools and communities (1-2 years experience preferred). Academic expertise in Mathematics, Science, Technology, Engineering, or other related fields. Prior to the start of employment, you must have a bachelor's degree from an accredited college or university and have earned a cumulative GPA of 2.5 or higher by the time employment begins. You do not need to be certified to be hired; however, if hired you will need to pass state teacher certification tests to meet the MA state requirements. All Commonwealth charter teachers must either have an appropriate MA educator’s license or pass required the MTEL(s) including the Communications and Literacy MTEL , Subject Specific MTEL, and the MTEL SEI (Sheltered English Immersion) Endorsement within first year of employment. All core academic teachers* assigned to teach English learners are required to earn the SEI endorsement. Any teacher without a SEI endorsement has one year from date of assignment to teach ELs, to earn the MTEL SEI endorsement. Additional Information Our people are what makes us Uncommon. We offer competitive compensation and comprehensive benefits that support the personal health, wellness, and finances of our staff and their families. Our compensation philosophy values equity & fairness and attracting & retaining top talent. Compensation Compensation for this role is between $57,000 to $89,000. Starting pay is determined using various factors including but not limited to relevant full-time teaching experience, education certifications, and tenure with Uncommon Schools. Candidates without full-time Teaching experience will likely have a starting salary of $57,000. Benefits Generous paid time off inclusive of sick time, paid holidays, and 10 weeks of paid breaks (Spring, Winter, and Summer). Extensive, best-in-class training and development Comprehensive health, dental, and vision insurance plans pre-tax flexible spending (FSA), dependent care (DCFSA), and health saving accounts (HSA) Financial Planning Pension through Mass. Teachers Retirement System 403(b) retirement savings program Paid leave of absence options (parental, medical, disability, etc.) Mental health and counseling support wellness benefits *A detailed list of all benefits is located HERE . At Uncommon, we believe that a supportive and welcoming environment helps our students, staff, and community thrive. We are dedicated to building a team that brings a wide range of perspectives and experiences, reflective of the communities we servewith over 70% of our staff identifying as people of color. Our organization values respect and open dialogue on important topics that shape our school culture. As an equal opportunity employer, Uncommon provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. We also ensure that individuals with disabilities receive all privileges and benefits associated with employment and are provided reasonable accommodations for the interview process and to perform core job functions. If you would like to request an accommodation, please email recruitment@uncommonschools.org. Keywords: high school math teacher, math education, Algebra instruction, Geometry teacher, Calculus teaching, college preparatory education, student engagement, differentiated instruction, charter school teacher, education certification

Keywords: Uncommon Schools, Medford , High School Math Teacher, Education / Teaching , Lexington, Massachusetts