Admissions Contact

Our Team, Our Opening Hours and How to Reach Us

Greeting from the Principal

Dear parents,

A warm welcome to SIS Frankfurt! As the school principal, I greet you on behalf of our team. Since our establishment in 2020, we have been on a continuous journey of growth. In September 2023, we proudly opened our Gymnasium.

Our school is built on the values of sustainability, academic excellence, respect, and integrity. These principles shape our educational philosophy. We aim not only to impart knowledge but also to instill in our students a deep appreciation for respect and integrity. In an atmosphere of empathy and international-mindedness, we foster the development of responsible, globally-oriented individuals.

The opening of the Gymnasium marks a significant milestone. Alongside academic excellence, we emphasize the cultivation of the individuality and autonomy of each student. Within a supportive community, they can unfold and discover their strengths.

We invite you to actively participate in school life. Together, we shape the future of our students, molding them into responsible and empathetic individuals. Thank you for placing your trust in SIS Frankfurt. We look forward to getting to know you and contributing to the success story of your children.

Warm regards,
Aurelio Reyes Alcántara

Get to Know our School Management Team

Aurelio Reyes Alcántara

Principal

More about Aurelio Reyes Alcántara

Aurelio Reyes Alcántara

Principal

Aurelio Reyes was born in Mexico City and raised in multicultural environments, which instilled in him a deep appreciation for diverse cultures and viewpoints. He is fluent in Spanish, English, and German.

Aurelio Reyes pursued a degree in Mathematics at the National University in Mexico and later specialized in Mathematics Education. His commitment to education led him to earn certifications in school management, leadership, and instructional leadership from the Harvard Graduate School of Education and the Harvard Business School.

With more than 13 years of experience in education, Aurelio Reyes has held various roles in school leadership, including department head and IB Coordinator. Throughout his career, his primary focus has been on creating inclusive, nurturing, and intellectually stimulating environments where students can fully explore their potential through creativity and self-reflection, as well as feel empowered to embrace diversity, think critically, and become independent learners.

Outside his professional life, Aurelio Reyes finds joy in hiking and swimming, often immersing himself in nature. Additionally, he has a passion for literature, cinema, and photography.

Portraitfoto von Patricia Locke
Patricia Locke

Head of Primary and Secondary School

More about Patricia Locke

Patricia Locke

Head of Primary and Secondary School

Patricia Locke grew up speaking both English and German in the United States, England and Germany, which sparked her early interest in different cultures and perspectives.


After qualifying as a secondary school teacher in Germany, she gained wide-ranging experience in education – in grammar schools, adult education, and language teaching for various companies and educational institutions. She was also part of the founding team of a private bilingual comprehensive school, where she contributed her expertise to an innovative learning community concept. 

 

What matters most to her is inspiring children with a joy for learning and supporting them on their journey through a complex and ever-changing world. Her focus lies in creating learning environments that not only support academic progress but also nurture social and emotional development while promoting essential learning strategies.

 

As a bilingual herself, she knows how valuable multilingualism is for learning and for understanding the world. She is particularly focused on future-oriented, digitally enriched teaching that motivates pupils, meets them where they are, and equips them for the demands of the future.

 

In her free time, she loves travelling, keeping active, and spending time in, on and around the water. Nature and physical activity are important sources of energy and inspiration for her.

Teaching and Supervision Hours

At our day school, students are supervised from 7:30 a.m. to 6 p.m.

 

The exact lesson and supervision times vary between the different school levels.

Holiday Calendar 2025/26

The school adheres to the official school holiday calendar of Oberursel. Please also take note of the public holidays in the federal state.

 

Holidays

Start of academic year18.08.2025
Autumn holidays06.10.2025 - 18.10.2025
Christmas holidays22.12.2025 - 10.01.2026
Professional Development (school closed)13.02.2026
Movable holiday16.02.2026 - 17.02.2026
Easter holidays30.03.2026 - 11.04.2026
Movable holiday (after Christi Himmelfahrt)15.05.2026
Movable holiday (after Fronleichnam)05.06.2026
Summer holidays29.06.2026 - 07.08.2026

You are invited! Have a look at our upcoming events.

22 October 2025

SIS Frankfurt: OPEN DAY
Start: 10:30
End: 12:00

SIS Frankfurt

SIS Swiss International School

An den drei Hasen 34-36
61440 Oberursel
Germany
 

Phone: +49 6171 8875 8011
 

Email: info.frankfurt@swissinternationalschool.de

 

Office Opening Hours

Monday to Friday: 8 a.m. to 4 p.m.

You Might Also Be Interested in This