"Observation sessions" refer to periods of time dedicated to watching and paying attention to something or someone carefully, in order to gather information or learn more about them. Full definition
The training program also includes observation sessions with current advocates in order to see advocacy skills and methods in action. (tapsbc.baremetal.com)
The family consultant may also observe the interaction between the children and each parent (and other significant people) in separate observation sessions. (federalcircuitcourt.gov.au)
But the SNP has made it clear it has no plans to change the law in Scotland, which insists that schools hold six religious observation sessions per year, although they can hold more if the headmaster chooses. (politics.co.uk)