The face-to-face multiplier event was performed by the NUCLIO team. It took place Saturday, September 25, 2021 at the Escola Secundária Frei Gonçalo de Azevedo, Cascais. 32 Teachers from primary and secondary schools of the Cascais and Lisboa participated in this first face-to-face multiplier event after lockdown. During the event the trainer explained the inSTEAM Methodology, namely availability and application of inSTEAM resources in Portugal; presented some inSTEAM features; and shows inSTEAM in the Go-Lab ecosystem.