Guided by the Model of Domain Learning (MDL), the study was designed to explore the extent of interrelations among prior knowledge, learning strategies, interests, physical engagement, and learning outcomes in a sixth-grade (N = 91) volleyball unit. Pearson product-moment correlations and a path analysis were conducted for the research purpose. The results showed that students' prior knowledge, learning strategies, and interests were interrelated. Physical engagement and learning outcomes were directly influenced by the interactions among prior knowledge, interests, and learning strategies. The findings in the study indicate that learning in physical education is domain-specific and a progressive process that encompasses both cognitive and affective components. (Contains 2 tables and 3 figures.)