The content of this educational unit has been prepared by staff of the Faculty of Humanities and Education Sciences in Mondragon and the Txantxiku Ikastola in Oñate, in collaboration with the Department of Treasury and Finance of the Provincial Government of Gipuzkoa. The following educational agents from the territory also collaborated in supervision and implementation of the unit: the Euskal Herriko Ikastolak European cooperative association, the Kristau Eskola association and the BIHE Association of Directors of Public Secondary Schools in Gipuzkoa.