Over the years, the Spanish education authorities have proposed various measures, such as the creation of Open Educational Resources (OERs), to guarantee the inclusion of all students in the education system. However, the literature on this topic indicates the persistence of certain challenges relating to the accessibility of OERs. In this regard,…

The purpose of this research study, which employed a quantitative research design, was to determine if there was a difference in the grades achieved by students who were enrolled in an entry-level Foundations of Education course using Open Educational Resources (OER) versus the grades achieved by students who used textbooks in other course…

This paper reports from a case study which explores kindergarten children's mathematical abstraction in a teaching--learning activity about reflection symmetry. From a dialectical perspective, abstraction is here conceived as a process, as a genuine part of human activity, where the learner establishes "a point of view from which the concrete…