摘要:AbstractPrevious Western-based studies had revealed that preschool children exhibited more positive play/social behaviors within well-defined spaces. This paper investigated 5 types of play/social behaviors among 494 Malaysian preschool children, aged 5–6 years, of both genders, in 20 classrooms categorized into well defined, moderately defined, and poorly defined. The methodology involved personal natural unobtrusive observations, video recordings, behavioral mapping, and interviews. The findings revealed results similar to those of the previous Western-based studies. The implications of the findings were discussed in relation to the design of future preschool classrooms.