The development of pre-service teachers' digital competences is an important part of their university education. At MFF UK, pre-service teachers are acquainted with using technology in various seminars including new compulsory subject Information Technology for Teachers.
The main objective is to improve their digital literacy and help them to achieve the level B1 according to the European framework of teacher digital competences. The paper includes the illustrations of students' applets created in GeoGebra software.