The Agnes Irwin School, an all-girls' Pre-K through 12th grade independent school in the Philadelphia suburbs, is committed to fostering the intellectual and personal growth of girls and young women. Providing its students with a rigorous academic education, AIS is dedicated to developing each student's highest potential in intellect, character, and physical well-being.  Currently, The Agnes Irwin School is seeking a MS History & Social Sciences Long Term Substitute for the fall of the 2026-2027 academic year. Successful candidates will be committed to fostering the intellectual and personal growth of students through the mission of The Agnes Irwin School and the Core Values of Strive for Excellence, Lead with Character, Foster Trust and Community, Nurture Passions and Wellbeing, and Respect and Celebrate All. Responsibilities include, but are not limited to: * Teach four sections of Middle School history courses   * Implement current curriculum and contribute to its ongoing development * Prepare course materials * Maintain student attendance and grade records * Evaluate and grade student work * Meet individually with students during Office Hours and planning periods * Inform parents and Division Director of students’ progress through written reports and conferences * Create and maintain a caring, safe environment conducive to students doing their best work * Participate in the life of the school by serving as an MS or US advisor and/or club sponsor, as necessary * Participate in all staff meetings, assemblies, and other required school functions, including occasional evening or weekend events * Work constructively with parents and colleagues * Attend conferences, workshops, and other professional development opportunities, and participate in the faculty evaluation process * Assume other duties as assigned  * The ideal candidate: * Embraces the Agnes Irwin School’s mission to empower each girl to learn, to lead, and to live a legacy, and is ready to commit to an ethos that centers girls’ education * Regards collaboration as an essential component of professional growth and values working on a team * Demonstrates cross cultural awareness and skills for engaging with and learning from people with diverse backgrounds and experiences. * Has a strong background in many genres of history and proven competency in teaching across culture, era, and geography. * Is willing and eager to take on co-curricular responsibilities outside of the classroom (eg advising, coaching, club advisor, trip lead, etc), and who finds joy in working with high school students and in participating in school life. Successful Candidates Will Possess: * Bachelor’s Degree in History, or related field (advanced degree and previous teaching experience preferred) * 2-3 years of classroom experience teaching History is preferred * Proficiency in the use of classroom technology: interactive smart boards, LMS, various Google and Microsoft Office applications, etc * Strong interpersonal skills  * Outstanding written and verbal communication skills * Ability to work effectively in a multicultural environment and respect different values and viewpoints Physical Demands of This Job: * Adequate physical mobility, dexterity, strength, and endurance to actively supervise and lead students and be responsible for their physical safety during all school-related activities, including evacuations and other emergency response procedures