From October 21-25, 2023, a group of five teachers from a Polish school participated in an Erasmus+ staff training in Rhodes, Greece. The training focused on implementing new activating methods in non-formal education and was organized by the New Horizons Center and trainer Marilena Ciontescu. Teachers from Poland and Romania attended workshops and shared experiences using field and classroom activities. The document discusses key 21st century skills like critical thinking, creativity, communication and cooperation. It also outlines various teaching methods that can be used for outdoor, non-formal, and informal education like burstering, the coffee table method, gamification and using board games.