Abstract
This paper compares STEM contexts in two Australian and Ghanaian education studies to examine how they supported children’s mathematical and scientific reasoning. Analysis was guided by a sociocultural perspective and Gilbert’s (2006) attributes of context. Findings show that coherent, activity‑focused contexts enabled children to engage with mathematical and scientific reasoning through shared inquiry. Across both settings, context mediated participation and shaped which forms of reasoning became visible and available for pedagogical response. This research highlights the importance of selecting meaningful STEM contexts that foreground explanation and justification.