International inSTEAM Teachers’ Conference “Inclusion in STEAM Class” took place virtually at the 25th September 2021, 9:30-12:30 ( CET-Brussels Time). This conference has been created specifically for STEAM teachers of primary and secondary schools who would like to enhance their teaching instruction with inclusive environmental inquiry lessons. The sessions were designed to provide the new instruments and methodology to create the inclusive inquiry activities as well as to give teachers the opportunity to share their experience on introducing inSTEAM teaching materials in a class setting, to share their success and solutions to challenges, and discuss it with an international teachers’ community.