In contribution to a body of scholarship that examines teaching as a form of learning, the paper addresses a central question: What can be learnt from organised mobilisation to educate in communities eager to strengthen their unique biocultural heritage? The question is explored through an examination of two grassroots education projects in Latin American provincial locations rich in history. Studied ethnographically over a period of fifteen years from the point of view of the educators who run them, these two projects offer a unique opportunity to examine the formation and the mobilisation of value in education. I show how popular education and agroecology methods are used in both cases to face socio-ecological conflicts and refocus developmental tensions. I conclude with a short reflection on UNESCO's 2020 approach to education and its vital role in radically reconfiguring humanity's place and agency on planet Earth.