Teaching the importance of sanitation and hygiene may be extended to teaching how to build simple toilets. This article describes how primary school children were taught the importance of ecological sanitation for health and for nutrient-enrichment of soils. Under the supervision of teachers, five designs of toilets were constructed, as well as handwashing devices. Urine was collected and used to water maize and other plants on demonstration plots. Local acceptance increased following open days to which local dignitaries and parents were invited.