The article describes a research carried out with students of the ninth grade of elementary school from a state school in. The data were recorded through audio and video recording, screen capture of the notebook used by the students, as well as the records written by them and are related to the work of the Euclidean division that emerged in the construction and programming activity of a traffic light. When analyzing the produced data, we can show that the activity with robotic kits potentiated the development of Computational Thinking and both contributed to the understanding of the mathematical content worked.