Teachers are effective agents who can introduce and support students' self-regulated learning (SRL) in classrooms. This qualitative study presents an integrative, ecological model of SRL-in-context from the teachers' perspectives. Data were obtained from in-depth interviews, participant observations and informal conversations gathered from the classrooms of six teachers working in three different state primary schools located in Queensland, Australia. The model builds on teachers' beliefs and understandings about SRL, the different ways through which they adopt SRL-supportive practices and the enactment of SRL in classrooms. It represents a complex structure of nested and mutually dependent systems with teachers having a central position, thereby forming the microsystem. However, teachers' efforts to support students' SRL are influenced by the exosystem (e.g., school, curriculum) and macrosystem (e.g., home, community) in a reciprocal fashion. The SRL-in-context model has implications for both theory and practice.