High School Math Teacher - 9th-12th Grade - 2025/2026 School Year

Mastery Charter Schools; Philadelphia (Philadelphia County); On-site; USD 60,000 - 82,000; Full time

Job summary

Mastery Charter Schools seeks a dedicated Math Teacher committed to fostering a love of math in their students. Join a passionate team that prioritizes continuous improvement while working collaboratively to drive student success. The role offers competitive starting salaries with growth opportunities and a supportive environment for professional development.

Benefits

403(b) retirement plan with a 5% match

Employee Assistance Program

Mental health and counseling services

Professional Development Fund

Qualifications

• Bachelor's degree required with a record of achievement.
• Teacher certification completed or in process.
• Expertise in math subject area.

Responsibilities

• Drive student achievement and set high expectations.
• Implement rigorous lesson plans and assignments.
• Analyze student assessment data to inform instruction.

Skills

Student Achievement

Data-driven Instruction

Classroom Management

Collaboration

Resilience

Education

Bachelor’s Degree

Teacher Certification

Job description

About Mastery:

Founded in 2001, Mastery Schools is a public charter network of 23 K-12 schools in Philadelphia and Camden, serving more than 14,000 students.

At Mastery, we’re on a mission to provide all students with the academic and personal skills they need to succeed after graduation and pursue their dreams. Student achievement is not just a goal for our organization; it's the reason we exist, and every member of our team is dedicated to securing student success. We are also committed to pursuing equity, actively disrupting systemic racism, and addressing the disparities that limit our students' choices.

Our culture is built on respect, service, and the belief that the success of our students, their families, and the communities we serve will help us achieve our mission. We foster a positive, open, and inclusive environment where honesty, humor, and continuous improvement are celebrated.

Join us in creating a model urban school district that serves all students with excellence. Together, we can make a lasting impact.

This role is eligible for a $5,000 bonus as well as up to $5,000 for relocation expenses!

New teachers start at $60,000, with Mastery offering up to $82,000 based on experience and education. Salaries range from $60,000 to $111,000, with growth opportunities as your career progresses.

The Opportunity:

We live in a world where math unlocks a future of possibilities. As a Math Teacher at Mastery, you will work relentlessly to foster a love of math with your students while growing and developing in your craft. From the moment they enter our buildings, young mathematicians at Mastery engage with the cutting-edge, open-source Eureka Math Curriculum to develop the skills and understanding necessary to have strong mathematical fluency.

Our Kindergarteners through 8th Graders learn with Eureka so that, from 9th through 12th Grade, they are prepared for the rigors of higher math. From 9th through 12th Grade, Mastery’s students study Algebra I, Geometry, and Algebra II, with opportunities for more advanced study in Precalculus, Calculus, and Statistics. Our core program for Algebra I/II, Geometry, and Precalculus is Agile Mind.

Teaching math at Mastery, you will set high expectations and provide high support so that all of your students are able to succeed. You will work alongside our Specialized Services and School Culture teams to ensure your students receive the help they need to thrive.

At Mastery, we value Continuous Improvement and want you to learn and grow in your craft. We utilize a team of Assistant Principals, central-office coaches, and school-based content teams to provide every teacher coaching and feedback. We have professional development or peer collaboration time built into our staff calendar. You will receive more than 250 hours of professional development annually and have a professional development allowance to further your growth.

Duties and Responsibilities:

• Drive student achievement and set high expectations for all students
• Commit to professional growth, self-reflection, receptiveness to feedback, and a desire to continuously improve
• Implement rigorous and appropriate lesson plans, assignments, and assessments in cooperation with school leadership and curricular resources developed by Mastery’s central office Academic Team
• Work closely with school leaders to analyze student assessment data to measure progress and inform instruction
• Collaborate in grade-level teams to discuss student work, share best practices, plan events for joy and humor, and ensure student mastery of standards
• Engage families in their children’s education by building relationships and maintaining regular communication
• Demonstrate genuine interest, belief, and care for students’ personal and academic success
• Respond positively and effectively to challenges with solutions-oriented resiliency

Education, Experience, and Skills:

• Bachelor’s degree required with a record of personal, professional, and/or academic achievement
• Teacher certification - completed or in process
• Demonstrated expertise in subject area
• Outstanding instructional skills driven by data and delivered through rigorous and engaging strategies

Physical Requirements:

• Ability to perform the essential duties of the role, including traveling to campuses, maneuvering in office spaces, and working at a computer for extended periods

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Mastery's Benefits Package:

We offer a comprehensive benefits program, including a 403(b) retirement plan with a 5% match, enrollment in the State of New Jersey Pension Plan, Employee Assistance Program, mental health and counseling services, a Professional Development Fund, and discounts at various retailers. A Benefits VIP Helpdesk is available to assist with benefits-related questions. See all our Benefits offerings here.

Annual Calendar:

Review our Calendar for the 25/26 School Year to plan your year with us. We believe our calendar is a benefit of working at Mastery!

Why You Should Apply:

We encourage candidates from diverse backgrounds to apply, recognizing that traditional qualifications are not the sole indicators of potential. We consider a broad range of knowledge, skills, education, and experience to find the best fit for the role.