This is the 5159th most frequent Spanish word.
grupales
Relating to groups; group-based.
Here, 'grupales' is used as an adjective to describe 'actividades' indicating they are intended for groups.
Organizamos actividades grupales durante el evento.
We organized group activities during the event.
In this sentence, 'grupales' modifies 'proyectos', showing that the projects are designed to be completed by groups.
Los proyectos grupales fomentan la cooperación entre los estudiantes.
Group projects foster cooperation among students.
The usage of 'grupales' describes 'discusiones' suggesting the discussions were conducted by groups.