In this paper, we explore the importance of the social-emotional competence on children's growth. To develop children social-emotional competence, an interaction between adults and children is critically needed. Teachers have the responsibility to enhance children's development in many aspects, including social, emotional, cognitive, academic, and behavioral skills. A positive relationship between teachers and young students helps those students to have better school achievement and behavioral skills. We review several studies that show the influence that social and emotional competence has on children's learning outcomes and on their ability to engage in good behaviors. We also provide several strategies that help teachers to build strong and healthy relationships with children. These strategies foster children's academic and behavioral success. We define social and emotional learning in relation to school successes to show that competence in these areas increases students' reading, writing, critical thinking, and vocabulary skills. Emotional regulations can also enhance school achievement, both in the present and in the future. Additionally, we provide strategies that teachers can use to foster positive behavioral skills.