Primary school teachers' opinions about early computer science education. - Alexandra Funke; Katharina Geldreich; Peter Hubwieser (Koli Calling, 2016)

Analysis of scratch projects of an introductory programming course for primary school students. - Alexandra Funke; Katharina Geldreich; Peter Hubwieser (EDUCON, 2017)

Willkommen im Programmierzirkus - Ein Programmierkurs für Grundschulen. - Katharina Geldreich; Alexandra Funke; Peter Hubwieser (INFOS, 2017)

Gender Differences in Scratch Programs of Primary School Children. - Alexandra Funke; Katharina Geldreich (WiPSCE, 2017)

Measurement and Visualization of Programming Processes of Primary School Students in Scratch. - Alexandra Funke; Katharina Geldreich (WiPSCE, 2017)

Off to new shores: preparing primary school teachers for teaching algorithmics and programming. - Katharina Geldreich; Mike Talbot; Peter Hubwieser (WiPSCE, 2018)

Aufgabe ist nicht gleich Aufgabe - Vielfältige Aufgabentypen bewusst in Scratch einsetzen. - Katharina Geldreich; Mike Talbot; Peter Hubwieser (INFOS, 2019)

Which Perceptions Do Primary School Children Have about Programming? - Katharina Geldreich; Alexandra Simon; Elena Starke (WiPSCE, 2019)

How to Transform Programming Processes in Scratch to Graphical Visualizations. - Alexandra Simon; Katharina Geldreich; Peter Hubwieser (WiPSCE, 2019)

Re-use of programming patterns or problem solving?: representation of scratch programs by TGraphs to support static code analysis. - Mike Talbot; Katharina Geldreich; Julia Sommer; Peter Hubwieser (WiPSCE, 2020)

Finding Anomalies in Scratch Assignments. - Nina Körber; Katharina Geldreich; Andreas Stahlbauer; Gordon Fraser 001 (ICSE (SEET), 2021)

Zentrale Webseite zur Übersicht von Projekten zur Informatik im Primarbereich. - Alexander Best; Martin Fricke; Katharina Geldreich (INFOS, 2021)

Data-driven Analysis of Gender Differences and Similarities in Scratch Programs. - Isabella Graßl; Katharina Geldreich; Gordon Fraser 001 (WiPSCE, 2021)

Informatische Bildung in der Grundschule und Zentren für Digitale Bildung. - Alexander Best; Martin Brämer; Volker Frederking; Katharina Geldreich; Ilka Goetz; Henry Herper; Ludger Humbert; Ulrich Kortenkamp; Günter Krauthausen; Silke Ladel; Carsten Schulte 001 (LOG IN, 2021)