Teacher-ProGRESS brings together scientific research, many years of school experience, and expertise in group analysis. We support teachers, school leaders, and educational teams in understanding challenging situations and developing new ways to respond.
Leadership and Founders
Lars Dietrich and Petra Weber jointly founded Teacher-ProGRESS and lead the company. Both also provide group-analytic supervision in schools.
Priv.-Doz. Dr. Lars Dietrich
Group-Analytic SupervisionLeadership · Research
Areas ServedBerlin and Brandenburg
Lars Dietrich is a private lecturer in the education of psychosocial development at Humboldt University of Berlin. He earned his Master of Education in Human Development & Psychology and his Ph.D. in Social Policy at Harvard University and Brandeis University in the United States. He is a group analyst and a member of the continuing education committee at the Berlin Institute of Group Analysis (BIG). Drawing on his own experience as a German-language and learning-support teacher in elementary schools, he has led group-analytic school supervision in the Berlin-Brandenburg region since 2022. He is currently training in psychoanalytic and psychodynamic psychotherapy for children and adolescents at the Institute for Psychotherapy Berlin.
Petra Weber
Group-Analytic SupervisionLeadership · School Practice
Areas ServedBerlin and Brandenburg
Petra Weber studied mathematics and physical education for the teaching profession at the Carl von Ossietzky University of Oldenburg. She worked for many years as a teacher in elementary and secondary education in Berlin and as a deputy principal. During her teaching career, she completed her training as a group analyst. Since then, she has worked in a psychotherapy practice; since 2022, she has also led group-analytic school supervision in the Berlin-Brandenburg region. Together with Lars Dietrich, she founded Teacher-ProGRESS and leads the company. She is a member of the German Society for Group Analysis and Group Psychotherapy (D3G) and the Berlin Institute of Group Analysis (BIG).
Our Supervisors
Our supervisors bring a range of educational and therapeutic experience to their work with schools. They share a group-analytic perspective on relationships, conflicts, and collaboration within groups.
Andreas Opitz
Group-Analytic SupervisionSocial and Therapeutic Education
Areas ServedBerlin and Brandenburg
Andreas Opitz is trained in social and therapeutic education, Gestalt education (TU Berlin), and group analysis (BIG). He is a founding member of the German Society for Group Analysis and Group Psychotherapy (D3G) and worked for many years as a social educator and group therapist in child and adolescent psychiatry at several Berlin hospitals. As a lecturer and seminar facilitator, he designs and leads group-analytic workshops for educational professionals and teachers. Participants reflect on their work with children and adolescents and on the processes within their teams.
Heribert Kellnhofer
Group-Analytic SupervisionChild and Adolescent Psychoanalysis
Areas ServedNorth Rhine-Westphalia, Rhineland-Palatinate and Hesse
Heribert Kellnhofer is a social educator, child and adolescent psychoanalyst, and group analyst. After working as head of educational services in child and adolescent psychiatry in Herborn, he has been in private practice in Siegen since 1986. He completed his training at the Anna Freud Institute in Frankfurt and the Ärzteakademie Bayern. He has many years of experience in individual and group therapy with children and adolescents. He lectures at psychoanalytic training institutes and Philipps University Marburg. His publications include work on supervision in child and youth welfare services.
Henrik Lusch-Dastyari
Group-Analytic SupervisionPsychodynamic Psychotherapy
Areas ServedLower Saxony, Hamburg and Bremen
Henrik Lusch-Dastyari is a specialist in child and adolescent psychiatry and psychotherapy. He is trained in psychodynamic psychotherapy with children and adolescents and is also a group analyst (D3G) and systemic therapist. After many years at Klinikum Bremen-Ost, most recently as lead senior physician in child and adolescent psychiatry, he has been in private practice in Achim near Bremen since 2024. He has regularly led Balint groups since 2020. He also contributes to postgraduate medical training and lectures at psychotherapy training institutes in Hamburg and Bremen.
Let’s Get to Know Each Other.
Would you like to get to know our team or find a suitable supervision service for your school? Please get in touch for a no-obligation conversation.