ABSTRACT The study examined the self-renewal and conceptual change kindergarten teachers in Israel, underwent from a professional career perspective in the process of implementing the transition to a forest kindergarten model. Educator’s career consists of four consecutive stages: entry, building, mid-career, and the late career. In education, self-renewal is a phenomenon characteristic in the mid-career stage. Self-renewal has scarcely been studied in early childhood educators. This article examines self-renewal based on interpretations of interviews with 19 kindergarten teachers in Israel who responded to an institutional initiative to create forest kindergartens. Results show three ways that mid-career kindergarten teachers used to update their pedagogical knowledge and reframe their educational perceptions. Self-renewal reflects the professional kindergarten teachers’ background based on their past experiences and aspects of entrepreneurial behavior. The article can help policymakers improve early childhood education and launch new enterprises.