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Mars Area Centennial School

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Principal's Welcome

Dear Centennial Families,

Welcome back to another exciting school year at the Mars Area Centennial School! I hope this letter finds you and your loved ones in good health and high spirits. I am pleased to extend a warm welcome to both returning and new families as we embark on a new academic school year

I hope you had a restful summer filled with fun, relaxation, and cherished memories. Our dedicated team of educators and staff have been working diligently throughout the summer to prepare for the upcoming school year, and we are eager to welcome our students back to our familiar halls of learning.

We believe that each new school year brings with it a fresh opportunity for growth, discovery, and achievement. Our committed faculty will continue to deliver high-quality instruction, tailored to meet the diverse needs of our students. We will foster a nurturing environment that encourages curiosity, critical thinking, and creativity, while also cultivating essential life skills such as teamwork, resilience, and empathy.

The partnership between school and home is a crucial part of our students’ successes throughout the school year. We believe that education is a collaborative effort, and your involvement is key. Your active participation in our Parent-Teacher Organization (PTO), school events, and volunteer opportunities will greatly enrich our school community. 

Throughout the year, we will keep you informed about important dates, events, and any updates or changes to our school policies and procedures. Our school website, newsletters, and communication platforms will serve as valuable resources to stay connected with the latest information throughout the school year.

I want to express my gratitude to the entire Mars Area community for your continued support and trust. Your involvement and dedication are essential to creating a positive and enriching learning environment for our students. Together, we can make a significant difference in their educational journey.

Please feel free to reach out to me or any member of our staff if you have any questions, concerns, or ideas to share. Your feedback is invaluable as we strive to continuously improve our school and provide the best educational experience for our students.

Once again, welcome back to the 2023 – 2024 school year! Let's make this school year a memorable and successful one for our students and their families.


Dr. Adam M. Kostewicz
Centennial School Principal
Mars Area School District

Principal's Profile

Adam KostewiczDr. Adam Kostewicz has served as the principal of Mars Area Centennial School since 2015. During the 2014-2015 school year, Dr. Kostewicz served as the principal of the Mars Area Primary Center.  

Dr. Kostewicz holds a Doctoral Degree in Administration and Leadership and a Superintendent’s Letter of Eligibility from Point Park University. Dr. Kostewicz has a principal’s certificate (K-12) and a master’s degree in Elementary Education from Indiana University of Pennsylvania. He also holds a bachelor’s degree in Elementary Education from La Roche University.

Prior to joining Mars Area School District, Dr. Kostewicz taught fourth-grade language arts and social studies at Highlands School District in Tarentum, PA. He also served as a fourth-grade math and science teacher and first-grade teacher. Additionally, Dr. Kostewicz has served as a Math Coach at the Urban League of Greater Pittsburgh Charter School in Pittsburgh, PA., and as a counselor at Summit Academy in Herman, PA.

Dr. Kostewicz and his family live in Ohio Township in the Pittsburgh area.