educational resources is incorrectly written, and should be written as "Educational resources" being its meaning:
Teaching resources, are those materials or tools that have utility in an educational process. Making use of an educational resource, an educator can teach a certain subject students. Teaching resources are those teaching or educational materials that serve as mediators for the development and enrichment of the student, favoring the process of teaching and learning and facilitating the interpretation of what the teacher has to teach.
