Long-Term Substitute Middle School Math & Science Teacher

Montessori Academy of Colorado; Denver (CO); Hybrid; USD 28,000 - 41,000; Part time

Benefits offered by this job

Paid Montessori training

Holidays and seasonal breaks

Flexible paid time off

Health insurance

Job summary

Montessori Academy of Colorado is seeking a dedicated Long‑Term Substitute Math and Science Teacher for middle school (grades 6–8). The assignment runs from February to April for about three months, replacing the lead teacher during their absence and ensuring seamless turnover at return.

The role requires strong content knowledge in math and science, a relevant bachelor’s degree, and prior middle school teaching experience.

Qualifications

• Strong content knowledge in middle school math and science.
• Bachelor’s degree in mathematics, science, education, or related field; teaching certification preferred.
• Experience teaching middle school students.

Responsibilities

• Implement math and science lessons aligned with curriculum.
• Differentiate instruction for diverse learners.
• Maintain classroom order and safety during experiments.
• Record attendance, work completion, and progress.
• Communicate progress and handoff notes to lead teacher.

Skills

Middle school math

Middle school science

Adaptability

Professionalism

Education

BSc in math/science/education

Teaching certification (preferred)

Job description

Montessori Academy of Colorado The Montessori Academy of Colorado is a metropolitan school that engages each child through innovative academics, exploration of character, and a fearless, forward mindset.

Job Title: Long-Term Substitute Middle School Math & Science Teacher
Department: Upper School
Reports To: Upper School Director
Employee Classification: Part-Time, Non-Exempt
Salary Range: $20 – $30/hr

Job Summary

The Montessori Academy of Colorado (MAC) is seeking a dedicated and adaptable educator to serve as a Long-Term Substitute Math and Science Teacher for our Middle School students (Grades 6–8). The assignment runs from approximately February to April for about three months. This role is essential to keep students' learning continuous and on track during the lead teacher's absence and to ensure a smooth handoff when the lead teacher returns.

Job Duties and Responsibilities

• Implement math and science lesson plans aligned with the existing curriculum and the lead teacher's scope and sequence.
• Guide students through current units, projects, and assessments planned for this period.
• Differentiate instruction to meet the varied developmental and academic needs of adolescent learners.
• Uphold the order and aesthetic of the classroom, and make sure math materials and science equipment remain accessible, well-maintained, and safely stored.
• Follow established safety procedures during all hands-on science work.
• Provide a consistent, nurturing presence to minimize disruptions caused by the lead teacher's absence.
• Maintain accurate records of student attendance, work completion, and academic progress.
• Communicate student progress to the lead teacher and Upper School Director, and prepare clear handoff notes for the lead teacher's return.
• Attend weekly team meetings and collaborate with Upper School colleagues.
• Perform additional duties as assigned by Administration in support of the school's mission and operational needs.

Qualifications

• Strong content knowledge in middle school mathematics and science (required).
• Bachelor's degree in mathematics, a science field, education, or a related field; valid teaching certification preferred.
• Experience teaching middle school students.
• Proven ability to step into an existing classroom dynamic with professionalism and ease.
• Prior experience in a Montessori setting, or a strong willingness to follow Montessori guiding principles.
• Commitment to the full duration of the assignment.

At MAC, we invest in the people who make our mission possible by offering a comprehensive and competitive benefits package. This includes the potential for paid Montessori training, paid holidays and seasonal breaks, flexible paid time off for personal or sick time needs, and paid professional development. MAC also provides health, dental, and vision insurance options, a 403(b) retirement plan with employer match, HSA plan, employer-paid life insurance, and additional voluntary life insurance, critical illness, and disability plans. Employees also receive an RTD EcoPass.

MAC is committed to providing a diverse and inclusive environment, free of discrimination or harassment, for its community. MAC does not discriminate on the basis of race, color, sex, sexual orientation, gender identity, religion, national origin, immigration/citizen status, age, marital status, pregnancy status, veteran status, disability, socio-economic status, political affiliation, or any other non-merit fact. Any person with a concern or allegation of discrimination or harassment shall report it to MAC’s Compliance Coordinator. More information is available on our website.