The idea of the scenario about engineering (construction of bridges) came up by the systematic observation of children's free play in the “building material”classroom corner. More specifically, teachers noticed the difficulties that children faced in building bridges in order to pass over cars or animals. Aiming to face these specific challenges, they proposed activities adapted to the specific needs and interests of the children in order to improve their skills in solving problems and in building bridges. They also incorporated STEAM concepts into the activities, by discussing about the forces that act on bridges such as tension and compression and by using simple terms that children could understand on how some shapes and structures provide greater stability, creating thus a more effective and engaging learning experience.