Background: Principles such as instructional alignment and step-by-step progression are often seen as crucial features of good assessment practices in school physical education (PE). These features are problematic from nonlinear educational perspectives, which are based on the idea that movement learning cannot be expected to take place in the same manner for all students. Without some resolution of the contradiction between nonlinear pedagogies and principles of good assessment, the likelihood of physical educators fully embracing any kind of nonlinear approach to movement education remains doubtful. Purpose and research question: Our purpose in this paper is to illustrate how assessment "for" and "of" learning (AfL and AoL) can look when implemented in nonlinear movement education practices. Methods: Illustrations of AfL and AoL are drawn from an investigation in which one educator implements a nonlinear movement education module. The module focuses on juggling for students at high school (grade nine students aged approximately 15 years). The module provided students with 10 × 50-minute lessons to explore juggling. Data were generated through observations (film clips and field notes) and ethnographic-type interviews that were conducted with the students during the lessons. Findings: In the context of the nonlinear movement education module, AfL became -- "Interacting with students in joint exploration; Introducing learning strategies; Encouraging students to clarify and verbalise the object of learning; Helping students identify critical aspects of the movement activity, and; Inviting students to consider alternative learning trajectories." The educator then evaluates the students' learning experiences in the context of a group performance at the end of the module. This performance can be seen as an instance of holistic assessment within a nonlinear movement education practice. Conclusions: The suggested holistic perspective on PE assessment could help educators to -- circumvent dichotomies such as mind-body and theory-practice; approach students as active meaning-makers; re-frame students' actions as emergent and context-dependent; and replace direct instruction with explorative teaching and learning methods. The major contribution of this study is that it shows how assessment "for" and "of" learning can be implemented in nonlinear movement education practices within a linear, goal-related and criterion-referenced, education system.