Christian Dohrmann

Christian Dohrmann is a Research Associate at the Institute of Mathematics (Chair of Mathematics Education), University of Potsdam, Germany. His work focuses on digital tools in mathematics education, angle concept formation, and open educational resources (OER). He is active in the German Centre for Teacher Education in Mathematics (DZLM) and contributes to EU projects like Intergeo and Open Discovery Space.

• Education:
  • Diploma in Mathematics Education (PH Schwäbisch Gmünd, 2011)
  • First State Examination for Teaching (PH Schwäbisch Gmünd, 2007)
  • Undergraduate in Media Technology (TU Ilmenau, 2003)

Research Interests: Dohrmann investigates how digital media (especially dynamic geometry systems and multi-touch interfaces) enhance mathematics learning. His doctoral project explores angle concept formation in secondary schools, addressing challenges in student understanding and developing visual teaching strategies. He actively promotes OER for teacher training and has designed e-learning modules for math educators.

Scientific Contributions: His publications analyze angle misconceptions, DGS interface design, and OER implementation. Key projects include:

• Intergeo (EU-funded interactive geometry platform)
• DZLM (national teacher education center)
• DIGMA (digitalization in math instruction)
• DigiProMIN (teacher professional development via digital modules)

Affiliations: Member of the Society for Mathematics Education (GDM), DZLM Department B, and working group on digital media in primary school mathematics. He collaborates with institutions like Martin Luther University Halle-Wittenberg and PH Schwäbisch Gmünd.