The concept of Emotional Intelligence is a clear and original field of study and research that has aroused the interest of the scientific community in recent years. The implementation of Differentiated Teaching and Learning, as a high-quality teaching, is a key factor in achieving the set learning goals, social skills but also the satisfaction of the psycho-emotional needs of all students. The purpose of this research study is to investigate the opinions of thirty-two (N:32) families of preschool children on the degree of strengthening of children's Emotional Intelligence by utilizing Differentiated Teaching and Learning in kindergarten. The research was completed during the Academic Year 2023-2024. A structured questionnaire with closed-ended questions was used to collect the research data. The data of this research highlighted the enhancement of Emotional Intelligence through the implementation of Differentiated Teaching and Learning in daily educational practice, a fact that was recorded in the opinions of the families of preschool students. The collaboration between family and school is crucial for the healthy emotional development of young children and creates a supportive environment that promotes their all-round development. A unified approach to the education and upbringing of children enhances their self-esteem, their social competence and their mental well-being.