Developing future mathematics teachers' ability to identify specific skills needed for work in GeoGebra

International audienceOur research aims at some aspects of the teachers' TPACK, namely their ability to identify specific skills needed for work in GeoGebra and to develop these skills in their pupils. Future mathematics teachers were acquainted with specific skills via selected tasks to be solved in GeoGebra. The data consist of the pre-service teachers' written solutions and proposals for teaching with GeoGebra and transcripts of discussions. The data were analysed in a qualitative way. Explicit work with the skills is needed for pre-service teachers to realise their importance for pupils' work in GeoGebra. While their technology knowledge was good, their proposals for teaching were mostly static and provided pupils with step by step directions. Implications for educating future teachers to teach effectively with GeoGebra are given