Vol. 3 No. 2 (2025): pijme

Volume 3, Issue 2 (2025) of the Polyhedron International Journal of Mathematics Education (PIJME) presents five research articles contributed by scholars from three countries: Indonesia, Argentina, and Colombia, reflecting the journal’s growing international reach and diversity of perspectives in mathematics education research. This issue highlights innovative instructional models, technology-enhanced learning, ethnomathematics, and classroom-based interventions across secondary and vocational education contexts. The articles explore a wide range of themes, including the use of the Learning Cycle 6E model supported by dynamic geometry software to enhance mathematical communication and learner autonomy, as well as the application of augmented reality grounded in didactical engineering and instrumental genesis to support students’ understanding of polyhedral concepts. Collaborative and student-centered pedagogies are also featured through a Team Games Tournament (TGT) approach to improve mathematical disposition and learning outcomes in probability instruction. In addition, this issue introduces concrete instructional innovations such as the SPLDV board to bridge abstract and concrete understanding of systems of linear equations, alongside the development and validation of ethnomathematics-based worksheets integrating Sundanese Pupuh to strengthen number pattern learning. Collectively, the studies in this issue contribute theoretical insights and practical implications for enhancing meaningful, contextual, and technology-integrated mathematics learning in diverse educational settings.