Deep time: from the complexity of the concept, to the implementation and assessment of curriculum materials, towards the development of citizenship

Abstract

This paper, with its roots from an earth science education research project, is divided in three parts: (i) guidelines of the project and a short reflection about the nature of time with educational implications; (ii) results of the implementation and assessment of new curriculum materials for 12/13 and 17/18 year olds; (iii) final considerations, mainly related to citizenship.