Based on Cueva's (2010) learning strategies, this study investigated adult learning strategies successful high school female principals use to nurture adult learning opportunities at their schools in the state of Missouri. Public high schools were selected based on their 2019 Missouri School Improvement Program (MSIP 5) performance standards and indicators. Their principals were asked to complete a survey online and self-select to be interviewed. The findings indicated that principals take their role as instructional leaders seriously and seek to use learning strategies for understanding, conversation, and action. The most frequently used adult learning strategy is Nurturing Place while the least used is Creative Expressions. The principals desire more time and resources to help their teachers learn.