In this third issue of volume 53 of Aula Abierta, several studies related to the evaluation and measurement of various educational dimensions are presented. Different instruments are validated, including those related to geographic literacy, teacher self-efficacy in mathematics education, literature teachers' practices regarding the classics, school well-being in primary education, and university students' interest. Additionally, the evaluation of the learning-to-learn competence is explored. The issue also includes articles that analyze the probabilistic knowledge of future secondary school teachers, present different approaches to homework at that stage, examine citizenship education curricula in various countries and contribute to research on the inclusive transformation of school playgrounds.