High School Biology/Science Teacher

Position Title: High School Biology and Integrated Sciences Teacher

FLSA Classification: Exempt, academic-year (10-month) position 

Reports To: High School Director

Hours: 8:00 a.m.–4:00 p.m. 

Position Start Date: 2026-2027 school year

The Post Oak School is looking for teachers who are passionate about their work and have an optimistic view of the capacities of teenagers. We are deeply committed to Diversity, Equity, Inclusion, and Justice (DEIJ) work and are particularly interested in applicants who come from diverse backgrounds, who can participate within a diverse community of faculty and staff, who can contribute to the development of an inclusive curriculum, and who can support a culturally diverse body of students. We are looking for faculty members who are willing to share their experience with students, teach elective courses, travel, and lead extra-curricular activities aligned with their personal interests. 

 Summary 

The science teacher is responsible for teaching integrated general sciences for grades 9-10 and IB biology for grades 11-12. This role also requires: 

• leading a student advisory
• traveling with the high school on our one-week Odyssey trip and overnight Retreat
• attending regular after-hours school events, including a weekly faculty meeting
• proposing and teaching elective courses during our two-week J- and M-Terms
• modeling a positive regard for adolescents, their work, and their personal dignity
• learning and using a Montessori approach, emphasizing hands-on, real-world learning
• engaging in collaboration with all faculty members
• cultivating productive relationships with our community partner organizations

Experience with and enthusiasm for participating in curricular travel opportunities is a plus. 

 Qualifications 

The well-grounded candidate will have experience teaching high school students in the subject listed above or related fields. We are looking for people who possess:

• Previous teaching experience, particularly high school
• bachelor’s or master’s degree in a relevant subject
• a deep knowledge of their content area 
• a never-ending passion for personal learning 
• the ability to creatively match academic and real-world challenges to a variety of student skill levels 
• commitment to the goals of Montessori education

Preferred Qualifications

• Montessori experience
• IB experience
• Competence beyond a single subject area
• Willingness to travel domestically and/or internationally for interim courses

Working with adolescent Montessori students in small classes means embracing a student-directed classroom where adults and adolescents work side-by-side. Teachers collaborate closely and pursue opportunities for cross-disciplinary integration of knowledge for their students. This often requires working outside of one’s primary subject area. 

 Teachers must be able to work in a fast-paced, highly fluid, and innovative workplace. The Post Oak School’s Middle and High School programs are situated in the Houston Museum District. Our academic program depends on extending the classroom work through connections and partnerships with local cultural institutions that the teaching faculty is expected to cultivate and maintain. 

 Physical Requirements and Work Environment 

Regularly sit, talk, and listen 

Regularly uses close and distance vision 

Travel 

The Post Oak School is an equal opportunity employer.