Central Tasks of Learning to Teach provided the theoretical framework for the first study involving one in-service elementary physical educator teaching integrated classes while reflecting on three major stages of the teacher's career, (1) the preservice, (2) the induction, and (3) the continuing professional development periods. Data revealed the following four themes: (a) authentic field experiences in immersive environments; (b) practice teaching in integrated settings enhanced self-confidence; (c) comprehensive and in-depth knowledge of students; and (d) disposition toward support when teaching and professional work outside of the teaching space. The Situated Expectancy-Value Theory provided the theoretical underpinning to our second case study looking to understand how a Physical Education Teacher Educator's motivation influenced her choice, persistence, and performance to teach an Adapted Physical Education undergraduate course. Three themes emerged from the data: (a) significance of K-12 experiences; (b) educational preparation; and (c) strong desire to share her knowledge and experiences. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]