* Ruchniewicz, H. (im Erscheinen) Can I sketch a graph based on a given situation? - Developing a digital tool for formative self-assessment. ''Proceedings of the 13th International Conference on Technology in Mathematics Teaching.'' 3.-6.Juli, Lyon | * Ruchniewicz, H. (im Erscheinen) Can I sketch a graph based on a given situation? - Developing a digital tool for formative self-assessment. ''Proceedings of the 13th International Conference on Technology in Mathematics Teaching.'' 3.-6.Juli, Lyon |