Sara J. Castner, School Director

Ms. Castner grew up south of Rochester and currently lives in Rochester. Ms. Castner taught pre-school through 12th grades in a variety of settings for 15 years prior to coming to DCS. Ms. Castner came to Discovery as an Intervention Specialist and Special Education Consultant Teacher in Discovery’s second year then moved into the role of Primary Dean and then Assistant Director. Ms. Castner is excited and proud to be in the role of School Director.

Ms. Castner is a child centered leader that prioritizes high expectations for all. She will push to provide academic experiences for our students that are rigorous, relevant, and help them build relationships while making real-world connections. As the School Director, it is important to Ms. Castner that everyone who steps through the doors-teachers, students and parents-are excited to be a part of our DCS family! This attitude enables everyone to meet the challenges of academic excellence in a positive, fun, and nurturing environment. Ms. Castner is passionate about the success of all DCS students.

Ms. Castner holds an undergraduate degree in Elementary Education and Special Education from St. John Fisher College; a master’s degree in Advanced Special Education K-12 from Grand Canyon University, and a master’s degree in Educational Leadership from SUNY Brockport College.

Mr. Anthony Porpora, Assistant Director

Mr. Porpora brings over 15 years of teaching and leadership experience to his role as Assistant Principal. He is certified in Students with Disabilities and Social Studies and holds certificates in School Building and District Leadership. Throughout his career, he has worked with students across various grade levels and abilities, ensuring that every learner receives the support needed to succeed.

Before becoming an administrator, Mr. Porpora taught in both self-contained and general education settings. He built a reputation for fostering positive relationships, advocating for students, and maintaining high expectations. Additionally, he has served as a summer school principal, leading programs across multiple districts while ensuring compliance, safety, and academic growth.

Outside the classroom, Mr. Porpora has coached several sports, including baseball, football, softball, and volleyball, emphasizing teamwork, perseverance, and sportsmanship. He currently resides in the Village of Palmyra with his wife, children, and their dogs.

As a lifelong learner and dedicated community member, Mr. Porpora believes that strong schools are built on positive relationships, open communication, and a shared commitment to student success. He is proud to serve the students, families, and staff of Discovery Charter School and looks forward to partnering with them to create the best possible opportunities for all learners.
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