Belén Ballesteros Velázquez is a professor in the Faculty of Education at UNED. Since the 2024-25 academic year, she has taught the subject "Schoolyards: Games and Inclusion in School" in the Early Childhood Education program. She is the coordinator of the teaching units "My Playground is the School," published by UNED. She has also participated in television programs such as "The Schoolyard: A Common Dream" and "Schoolyards: Living Through Play."