ARIPIN, Usman; ROSMIATI, Tanti; ROHAETI, Euis Eti; HIDAYAT, Wahyu. Learning Trajectory for Teaching the Mean Concept Using Problem-Based Learning and Animated Video. Jurnal Pendidikan Matematika, [S. l.], v. 19, n. 1, p. 181–196, 2025. DOI: 10.22342/jpm.v19i1.pp181-196. Disponível em: https://jpm.ejournal.unsri.ac.id/index.php/jpm/article/view/108. Acesso em: 31 jan. 2025.