ETS, Math Interventionist, Haggerty

Haggerty School; Cambridge (MA); On-site; USD 60,000 - 90,000; Full time

Job summary

Cambridge Public Schools invites applications for an Extended Term Substitute, Math Interventionist at Haggerty School in Cambridge, MA. The role runs Oct 2026 through Jan 2027, with a starting date of Oct 1, 2026, and involves collaborative planning, data monitoring, and targeted math instruction for grades K-5.

The successful candidate will have stronger content knowledge, urban instructional experience, and a commitment to equity.

Qualifications

• Bachelor’s degree required; Master’s in Education strongly preferred.
• Massachusetts Teacher Certification/Licensure preferred.
• At least 4 year(s) of relevant experience preferred.

Responsibilities

• Skillfully facilitate student learning of math content and practice standards through small-group intervention and/or co-teaching.
• Organize and support screening assessments and data meetings three times each year.
• Co-plan and facilitate grade-level teams and participate in school/department meetings.
• Identify student needs and collaborate with educator teams to address needs and improve instruction.
• Incorporate varied teaching/assessment strategies to inform instruction and target interventions.
• Support data monitoring and school improvement work with the Instructional Coach and principal.

Skills

Elementary math instruction

Lesson planning

Formative assessment

Co-teaching

Data-informed instruction

Growth mindset in math

Cultural proficiency

Classroom management

Communication skills

Education

Bachelor’s degree

Massachusetts teaching certification (preferred)

Master’s in Education (preferred)

Job description

ETS, Math Interventionist, Haggerty

Cambridge Public Schools Haggerty School - Cambridge, Massachusetts Open in Google Maps

This job is also posted in Cambridge Public Schools

Job Details

Job ID: 5923595
Application Deadline: Posted until filled
Posted: Sep 11, 2026 4:00 AM (UTC)

Starting Date: Oct 1, 2026

Job Description

Position : Extended Term Substitute, Math Interventionist

Available October 2026 through January 2027

Haggerty School

Haggerty School Community:

Our school motto, “Everyone is Different, Everyone Belongs” is the foundation of our commitment to diversity and inclusion. We believe that all students can achieve at high levels.

At Haggerty, we believe that learning unfolds when we provide conditions in which children can explore, inquire, and shape their own understandings. The school values the culture and beliefs that each child brings to the classroom, and teachers believe that children must engage with their world in order to make sense of it and build their knowledge. Each student is expected to take responsibility for his/her own learning while collaborating, supporting, and respecting others. We are committed to relationships and rapport being foundational to the conditions needed for successful collegiality, caregiver engagement, and student success.

The Opportunity:

We are looking for a dynamic, committed educator with strong mathematical content and pedagogical knowledge, solid classroom management skills, a deep commitment to educational and racial equity, and experience working in an urban school setting. The math interventionist will be required to collaborate with and plan instruction with classroom teachers; provide in‑class co‑teaching support; work with small groups in grades K-5; work cooperatively with personnel from the Office of Special Education (OSE) and the Office of Multilanguage Learners (MLL); and help select appropriate materials for students. The math interventionist will also work directly with the Instructional Coach and principal to support data monitoring and analysis, school improvement, and intervention work. The math interventionist will support implementation of the math curriculum.

Key Responsibilities:

• Skillfully facilitate student learning of math content and practice standards through leading small group, targeted math instruction (intervention) and/or co‑teaching Tier I instruction.
• Organize and support the administration of school‑wide screening assessments and associated data meetings 3 times each year.
• Co‑plan and facilitate different teams, such as child study and common planning teams.
• Identify unique student needs and collaborate with educator team members to effectively address those needs and improve instructional practice.
• Incorporate a variety of teaching and assessment strategies in order to inform and modify instruction, as well as target intervention and enrichment needs.
• Attend grade‑level team meetings with grade‑level colleagues as assigned.
• Partner with families to include them in each student’s learning and development, guided by a profound understanding of the importance of this connection.
• Attend regular school and department meetings and serve on the school’s Instructional Leadership Team, which meets after school.
• Perform other duties as assigned by the school principal.

Your Skill Set:

As the incoming Math Interventionist,you will possess many, though perhaps not all, of the following characteristics and qualifications:

• Mathematics teaching experience in the elementary grades with a proven track record of promoting high achievement in urban classrooms.
• Experience writing lesson plans with clear, attainable learning goals and aligned activities.
• Experience using a range of assessments to analyze student learning to inform instruction and monitor processes.
• Experience facilitating high‑performing teams of educators with the use of protocols
• Experience in analyzing student needs and providing small group, targeted math instruction for students who are not yet achieving at grade level standards.
• Knowledge of or interest in learning Integrow/Math Recovery assessments and instructional strategies
• Understanding of the developmental needs of learners and the strategies to meet those needs through the curriculum.
• Understanding of the difference between a growth and a fixed mindset and how to support the development of a growth mindset in math learners.
• Cultural Proficiency and culturally responsive teaching skills
• Strong classroom management skills.
• Strong knowledge of Common Core/ MA Curriculum Framework for Mathematics.
• Excellent communication and interpersonal skills, alongside the ability to establish and maintain effective and collaborative working relationships with a diverse staff and student body.
• Ability to develop and maintain organizational structures while working on a variety of ongoing tasks
• Bachelor’s degree required; Master’s in Education strongly preferred.
• Massachusetts Teacher Certification/Licensure in Mathematics preferred
• A strong work ethic, alongside a commitment to doing whatever it takes for students to excel.

At the Cambridge Public Schools, we are committed to cultivating an environment where diverse perspectives and backgrounds are embraced, acknowledging that a team reflecting diversity of race, color, ancestry, national origin, religion, age, gender, marital/domestic partner status, sexual orientation, gender identity, disability status, and veteran status allows us to serve our communities better. To that end, we welcome and encourage applicants to bring their authentic selves when considering employment opportunities within our district.

Position Type: Substitute

Job Requirements

• At least 4 year(s) of relevant experience preferred.
• Undergraduate Certificate degree preferred.
• Citizenship, residency or work visa required

Contact Information

• Cambridge Public Schools
• 135 Berkshire Street
• Cambridge, Massachusetts 02141
• Email: [e-mail]