Upper School Science Teacher– Part-Time Position
  • Teacher
  • Upper School

Dexter Southfield, Brookline, MA

Accredited by NEASC

About Dexter Southfield  

Dexter Southfield is an independent school where boys and girls in Pre-K through Class 12 develop their individual talents and build an ethical foundation for life. Students learn to lead and serve with character, confidence, and compassion. Our 36-acre campus is located on the Brookline-Boston line, just minutes from the city’s best museums, libraries, hospitals, performing arts venues, colleges, and universities—all of which serve as an extension of our classrooms. At Dexter Southfield, we approach everything we do with enthusiasm and commitment, living by our School’s motto: “Our Best Today, Better Tomorrow.”

About Our Team

Our Science Department team is made up of highly talented and professional members who demonstrate exceptional commitment to instructing and engaging students in biology, earth, chemical, engineering, and medical sciences. Our faculty encourage students to use their knowledge and skills to achieve their post-secondary goals and remain lifelong learners. If you enjoy working with older students and want to develop their love of science and support their personal growth, this role offers you a great opportunity to join one of the region’s most respected independent schools.

 About You

You are an experienced upper school science teacher (Classes 9-12) who seeks to share your love of biology and chemistry by creating a classroom environment that promotes an awareness of the role of science in economic and social progress. Being a highly energetic and productive self-starter, you demonstrate a love of teaching and thorough command of the subject matters and motivate each student to acquire knowledge of scientific facts and principles, and skills in scientific methods of problem solving to help them develop talents in scientific fields. You have excellent organizational and relationship building skills, are adept at guiding students in the classroom, and support their extracurricular pursuits. You enjoy the rhythm and energy of an independent day school and demonstrate integrity, humor, and sound judgment in everything you do.  

To be successful in this role, you must be able to:

  • Maintain a part-time academic course load teaching three sections (two biology, one chemistry)
  • Create and present lesson plans that effectively align with core competencies and School standards
  • Instruct and engage students in classroom, laboratory, and small group settings to foster independent and collaborative problem-solving skills and expand their scientific knowledge and methods
  • Supervise students in biological science-based lab activities, including preparation, set-up and clean up.
  • Maintain student attendance records, grades, and other required records.
  • Collaborate with colleagues to address teaching and research issues.
  • Serve on academic or administrative committees that deal with School policies, departmental matters, and academic issues.
  • Develop assignments and homework through which subject area growth and proficiency is measured and prompt feedback is provided to students
  • Manage classroom and maintain an environment that ensures students demonstrate appropriate behavior, manners, study habits, and academic progress
  • Provide timely and effective feedback to students, parents, faculty, and administration regarding student progress, needs, and concerns (academic, social, emotional)
  • Fully engage in School-sponsored professional development programs and department meetings
  • Remain knowledgeable of instructional and curriculum trends, goals, and objectives
  • Actively support an inclusive school community based on cultural competence, diverse identities and perspectives, and respect for all voices
  • Perform other duties, as assigned


  • Bachelor's degree in science-related field or education; advanced degree preferred
  • At least three years of classroom experience teaching upper school students, including remote teaching
  • Ability to plan, organize, develop, and conduct comprehensive lesson plans and instruction
  • Demonstrated knowledge in teaching principles, theories, methods, behavior management techniques, and conflict resolution strategies
  • Ability to communicate effectively (orally and in writing) and possess the ability to establish and maintain effective working relationships with students, faculty, staff, and parents
  • Understanding of the unique academic, social, and behavioral characteristics of upper school students
  • Ability to plan, organize, develop, and conduct comprehensive lesson plans and instruction
  • Ability to create and contribute to an engaging and inclusive learning environment and workplace
  • History of continued education or professional development
  • Ability to be flexible, effectively manage stress, and adapt to changing work priorities and assignments  


At Dexter Southfield, we promote a culture of excellence that extends beyond academics, athletics, and the arts. We value a diverse and inclusive community in which different identities and perspectives are accepted and respected to create a sense of belonging for all.


Interested candidates are encouraged to send a cover letter, resume, and completed employment application to Carmen Aliber, Director of Human Resources, at caliber@dextersouthfield.org.