The main objective of this research is to present and analyse the collaboration process established between the ethnographers and a school that faces the challenge of promoting change towards a more inclusive and social justice model. The methods used to carry out this four-year process were, in essence, participatory observation in multiple contexts, individual interviews and discussion groups and, finally, informal conversations with all the participants of the process. The results demonstrate the conditions and advantages that come out of the collaboration process between all those involved and the ethnographers; the importance of learning and knowing how to listen to the students' voices; and the changes made to the education process that bolster the introduction of a more inclusive and social justice model in schooling.