High School Science Teacher - Long Term Substitute

Job Description

Job Description

About Freire Schools

Established in 1999, Freire Schools ( is a network of four charter schools across Philadelphia and Delaware whose mission is to prepare students from historically underserved communities for success in college and beyond. We're distinguished by our belief in every student who walks through our doors, our strong code of conduct and commitment to peace that ensures a safe environment for all, our sense of family throughout our community, and our joyous and engaged classrooms that focus on academic achievement. As evidence of our impact, in 2023 Stanford's Center for Research on Education Outcomes ranked Freire Schools in the top 15 in the country for academic gains out of 368 charter networks nationwide.

For this High School Science Teacher - Long Term Substitute position, you'll be working for our high school in Wilmington, Delaware called Freire Charter School Wilmington (8th-12th Grade): Freire is all about Graduation x 2 – graduation from high school and from college. We challenge our students to achieve higher than they ever have before, and we give them the support they need to get there, including individualized college counseling.  95% of The Class of 2025 received acceptances into 52 unique colleges and universities and earned nearly $4.3M in scholarship award offers. This success is possible because the Freire Wilmington community is a true family, where students and teachers work together to build the future each student wants and deserves.

Freire Charter Wilmington: 201 W 14th St, Wilmington, DE 19801

As a member of Freire's instructional team, you will implement high-quality, standards-aligned curriculum to drive rigorous instruction, critical thinking, and high achievement in your classroom, while remaining open to feedback and instructional coaching. 

*This positions runs from November through February with potential for permanent opportunities based on overall fit and position availability. The long term assignment will be for Chemistry and Environmental Science classes. 

• Foster a classroom environment grounded in critical thinking, academic rigor, mutual respect, and high expectations for all students.
• Implement high-quality, content-specific curriculum and design instructional materials that promote deep thinking and problem-solving.
• Maintain consistent, proactive communication with families regarding student progress and relevant school updates.
• Engage fully in professional development and collaborate closely with colleagues to best support student learning and growth.

You believe all students can succeed and bring our values of equity, love, critical thinking, and diversity to life through your actions and relationships. We're looking for someone who meets the minimum requirements to be considered for the role. If you meet these requirements, you are encouraged to apply. 

• Bachelor's degree required
• Valid state teaching certification, or a clear ability and commitment to obtain certification
• Strong content-area knowledge and instructional skill 
• Positive, solution-oriented mindset with a work ethic and collaborative spirit
• Minimum of two years of successful experience working with diverse student populations

The annual salary range for this role is $50,000–$85,000, with certified teachers entering their first year starting at $55,000. We offer a competitive salary based on experience and qualifications. Our benefits package includes health, dental, vision, and additional benefits. Delaware employees are enrolled in Delaware's state pension plan and may also elect to participate in the state's 403(b) retirement plan.

Freire Schools is committed to maintaining a workplace environment that is free from all forms of discrimination and discriminatory harassment, in service of the policy goal to provide all persons equal access to all categories of employment regardless of a person's actual or perceived race, color, sex, sexual orientation, gender (including gender identity and expression), age, creed, religion, ancestry, national origin, ethnic background, marital status, pregnancy or related conditions, disability, veteran/military status, or any other category protected by state or federal law.