This work focuses on mathematics education at the university level using the interactive visualization tool SimReal+. To capture the complexity of teaching and learning processes in a digital environment, this work uses the instrumental approach to explore teachers' orchestrations in classroom. In addition, this study proposes a set of criteria to analyse students' perceptions of teachers' use of SimReal+ to orchestrate the learning process. The findings indicate that SimReal+ is globally a useful tool in mathematics education at the university level.