Tsang, Sophia WRSharp, Emma LEgli, Victoria2025-09-232025-09-232025Tsang, S. W. R., Sharp, E. L., & Egli, V. (2025). Children’s knowledge and experience of compost/ing. Journal of Geoscience Education, 1-14. https://doi.org/10.1080/10899995.2025.25379961089-9995https://hdl.handle.net/10289/17664The Soilsafe Kids education and research programme conducted focus groups about compost/ing in eight primary school classes in Tāmaki Makaurau Auckland, Aotearoa New Zealand in 2022 to understand what students learning at New Zealand Curriculum Level 2 (generally students aged 5-11 years old) know about compost/ing. Here, we present a qualitative content analysis of focus groups focusing on children’s knowledge about the process of composting and the resulting material. In general, children (n = 117) demonstrated a broad understanding of the typical process of composting and the materials that make up compost. Our findings contrast previous studies which have indicated children’s comprehension of composting was poor. Despite participating in composting activities in schools, respondents more commonly associated compost/ing activities with their home systems where they compost with their families. Although these results demonstrate a considerable baseline knowledge of compost/ing understood by children, they also had many questions about compost/ing, mainly focused on the timing necessary to biodegrade, the underlying processes, and why we compost. These encouraging findings mean educators have a strong base on which to build lessons, but educators should also be mindful of bridging gaps in retention for greatest pedagogical impact, given our findings suggest that students recall off-campus composting experiences more strongly than on-campus ones. This should be further explored to ensure children have equitable access to composting experiences and knowledge.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Journal Article10.1080/10899995.2025.25379962158-14283901 Curriculum and Pedagogy39 Education3901 Curriculum and pedagogy4 Quality Education