This article examines learning design in a postgraduate preservice teacher setting. The overarching aim was to embed environmentally responsive approaches throughout two companion units for diverse student cohorts. This article reports on a teacher educator self-study in a regional university with extensive online delivery for large units (300-800 students) in a 1-year course. The author examines how assessment tasks in literacy-and numeracy-oriented units are designed to meaningfully integrate environmental sustainability using contextual cues, collaborative learning, complex tasks, and reflexivity. The author argues for the use of these four key guidelines of environmentally responsive pedagogies alongside environmental education programs to emphasise messages of sustainability even in units that are not traditionally environmentally oriented. Challenges include problematising the nature of effective teaching and dealing with the complexities of purposeful learning. Innovative unit learning design alone, however, is inadequate if the surrounding systems are fragmented and seen as separate to learning about sustainability.The purpose of this article is to argue that effective learning design -in any context -attends integrally to four key guidelines: contextual development, purposeful collaboration, foregrounding complexity, and reflexive practice. These guidelines should underpin all learning and teaching in order that environmental sustainability messages are conveyed through the learning processes and experiences of students as well as the content.Community-based, 'grass-roots' environmental education (EE) programs exhibit these four characteristics, but I argue in this self-study that EE should not be the only programs where contextualisation, collaboration, complexity, and reflexivity are applied.If teacher educators widely account for these four characteristics of effective learning design, there is a greater likelihood that deep learning -even in areas not traditionally associated with EE -will be underpinned by messages of environmental stewardship. Further, if preservice teachers apply these four guidelines to learning design for their