Spanish educational laws specify the percentage of a student’s grades that correspond to knowledge, skills, and behavior. In recent years, the percentage assigned to attitudes has grown due to the importance that pedagogues and psychologists place on good attitude and coexistence in learning processes. In this regard, this study explores how teachers can evaluate students’ attitudes and promote good behaviors in classrooms, as well as improve communication with families. To do that, a gamification approach was implemented in a secondary school in Spain, managing a population of 105 students and an experimental sample of 53 students. The results obtained from comparing the experimental and control groups reveal a deep importance of promoting and recognizing good behavior at school, as well as of letting students and families participate in the process.