The Influence of Scratch-Assisted Problem Based Learning (PBL) Model on Improving Elementary School Students’ Mathematical Understanding Ability. Educational Studies and Research Journal, [S. l.], v. 1, n. 3, p. 134–138, 2024. DOI: 10.5281/zenodo.14018064. Disponível em: https://journal.midpublisher.com/index.php/esrj/article/view/107. Acesso em: 1 aug. 2025.