This lecture covers the process of determining the orientation of a station using a theodolite in geomatics. It explains how to calculate the bearing between the station and a known point, set up the theodolite, and use geomatics elements. Numerical examples are provided to illustrate the orientation calculation, emphasizing the importance of having at least two fixed points for accurate results. The lecture also discusses the significance of making multiple determinations and direction measures to detect faults and ensure precision in the orientation process.