Our Team, Our Opening Hours and How to Reach Us

Manuela Heuthaler has been the principal of SIS Friedrichshafen since September 2022. She comes from the Rheingau region near Frankfurt and brings more than 20 years of leadership experience from different cultural contexts.

In Germany, she worked at four schools as a teacher and principal, and within six years she developed the Karg Foundation into one of the leading organisations in the field of supporting the highly gifted.

For Mercedes-Benz, she led school programmes in South Africa and the USA for more than ten years. As a trainer for conflict-sensitive peace work in Kenya, she also used her skills in development service. "

Julia Maria Grötzinger has been teaching philosophy, ethics and French as well as the seminar course and TOK (IB) at SIS Friedrichshafen since September 2017. In the school year 2020/21 she took over as head of secondary school (upper classes) .

Julia Maria Grötzinger grew up in the Upper Swabian district of Biberach and became involved in voluntary work with the scouts and the youth culture association at an early age. After graduating from high school in 2009, she studied philosophy and French at the Albert Ludwig University in Freiburg. During this time she spent two semesters working as a foreign language assistant in Saint-Quentin-en-Yvelines, France. She obtained her second state examination at the Seminar Weingarten in July 2017.

Respectful interaction and criticially reflecting upon values and attitudes is of utmost importance to Julia Maria Grötzinger. Through this she would like to shape the future of the students. It is her greatest desire that the students grow into citizens of the world, capable of facing global challenges, and yet remain attached to their roots.

Theresa von der Dellen has been a teacher at SIS Friedrichshafen since the beginning of the 2021 school year and teaches the subjects Physical Education and English. In the 2022/2023 school year, she took over as head of the lower and middle school levels at the Gymnasium.

Theresa von der Dellen was born and raised in the northern Black Forest, but since her student days in Konstanz, she cannot imagine a more beautiful place to live and work than the Lake Constance region. As a person who is very enthusiastic about sports and close to nature, Theresa von der Dellen was already active in many sports clubs as a child and teenager and practised coaching with great enthusiasm.

She gained experience abroad in English-speaking countries during her high school years in Oregon (USA) and during a semester abroad in Cork (Ireland) as part of her teacher training. She took her second state examination at the Weingarten Seminary.

When working with children and young people, Theresa von der Dellen is particularly interested in social interaction and the joy of learning. In sports lessons as well as in the classroom, the students learn to treat each other with respect and can develop their independence and individual skills.

Sandra Huber has been teaching at the SIS Friedrichshafen Primary School since 2019 and took over as the head of primary school for the 2022/2023 school year.

Sandra Huber grew up in Oberkirch, Baden. Even in her youth, she enjoyed working with children and so she was a children's coach in the local athletics club for many years. After graduating from high school in 2009, she went to the USA for a year as an au pair. She then went on to study European primary education in Freiburg. In 2017, she came to Lake Constance for her traineeship and took her second state examination at the Meckenbeuren seminary.

It is important to Sandra Huber that the pupils develop into independent, respectful and cosmopolitan people at an early age and enjoy coming to school.