In teaching with STEM methodology there is a transformation of the teacher-centered learning method into exploratory-exploratory learning. The student engages creatively and collaboratively with his classmates to give solutions to problems posed by the teacher in a climate of creation, search, inspiration, and reflection. They work together to provide sustainable solutions to educational problems related to everyday life. This way of exploration, experimentation, inspiration and creativity takes place in the problem-solving process and exploits the pillars of STEM, Science, Technology, Engineering and Mathematics, contributing to the global approach to the subject. A prerequisite for STEM methodology implementation is the existence of a problem-solving method.