We reveal the results of a study that was conducted at UQAR in 2013, with 44 undergraduate students in primary education. The objective of this study was to explore the instrumental genesis of clickers in the context of initial teacher training in mathematics. Thus, it highlights the perspective of the didactician wishing to use clickers to instrument their practices. To reach our objective, we first integrated the clickers in our teaching courses. We then observed the processes of instrumentalization and instrumentation, which reflect the instrumental genesis of this tool.