The workshop aims at presenting and discussing activities in which graphing motion technology named WiiGraph is used. The activities offer possible lines of (inter)action within the classroom to introduce discourses about the concept of function, graph sense, transformations, all through modelling motion. These lines might be followed at different school levels subjected to suitable task design (for example, we are going to carry out similar activities with grade 4, grade 7 and grade 10 students). The software allows for working with graphs of many different types. It leverages two remote controllers of the Nintendo Wii to detect and graphically display the location of two users as they move along life­size number lines. Embodied interactions with the software are the ground for gaining insights into temporo-spatial mathematical relationships. During the workshop, some tasks will be presented to the participants, who will be directly involved in the use of the software and in discussions about potential and limits of the technology, in particular about issues concerned with task design.