This study investigates the developmental and contextual predictors and behavioral patterns of off-task behavior among kindergarten students in public-school English classrooms in the United Arab Emirates, while also examining teachers’ perspectives on these behaviors within early childhood learning contexts. Adopting a mixed-methods design, data were collected over an eight-week period through teacher interviews, surveys, anecdotal records, and systematic time-sampling observations involving 78 KG1 and 82 KG2 students, alongside 7KG English teachers. Findings revealed consistent behavioral patterns, with off-task behavior most frequently manifested as talking, wandering, and daydreaming. These behaviors occurred more often during afternoon sessions, extended instructional periods, and activities that lacked movement, interaction, or hands-on engagement. The analysis identified both developmental and contextual predictors shaping these behaviors. Developmental factors included emerging attention span, self-regulation abilities, and age-related learning needs, while contextual influences involved classroom environment, instructional structure, lesson pacing, and emotional climate. Teachers’ perspectives consistently framed off-task behavior as a natural and developmentally appropriate part of early childhood learning rather than intentional disruption. Many viewed these behaviors as indicators of fatigue, limited engagement, or unmet learning needs. In response, targeted strategies inspired by Montessori-informed practices, structured transitions, movement-based activities, and brief self-regulation routines were implemented to support children’s focus and participation. These approaches showed promising effects in improving engagement and reducing the frequency of off-task behaviors. Overall, the findings highlight the importance of understanding off-task behavior through a developmental and contextual lens and underscore the value of responsive, child-centered pedagogical practices in supporting engagement, attention, and wellbeing in early childhood English classrooms.