Teaching material and textbooks undoubtedly operate politically and should be scrutinized concerning the knowledge that they construct and legitimize. But such scrutiny often involves new hegemonies and political complicities that also require further scrutiny. Following Ernesto Laclau and Chantal Mouffe's discourse analysis the present article…

The nature of science describes what science is, how it works, and its interactions with society under the perspectives of philosophy, history, sociology, and psychology of science. Understanding it is an essential aspect of scientific literacy. Given the critical role that school textbooks hold, considering what is taught and how it is taught in…

Chemical bonding is a fundamental but complex topic, which has traditionally been associated with learning difficulties, misunderstandings, and misconceptions. This paper reviews some previous studies, concerning students' conceptual difficulties and reports the findings from a research study with Greek students, which set out to examine their…

This document contains the second volume of the proceedings of the 30th Annual Conference of the International Group for the Psychology of Mathematics Education. Conference presentations are centered around the theme "Mathematics at the Centre." This volume features 60 research reports by presenters with last names beginning between Abr…