The document discusses the theories of constructivism and constructionism and how they relate to LEGO SERIOUS PLAY. Constructivism, developed by Piaget, holds that knowledge is constructed by individuals based on their experiences. Constructionism, developed by Papert, extends this idea by asserting that learning happens especially well when people construct external, physical objects. When using LEGO SERIOUS PLAY, participants construct 3D models which allows them to build knowledge structures in their minds through concrete thinking and metaphor. This process unleashes creativity and helps comprehend complex concepts.