The Effectiveness of Manipulatives in Teaching Momentum Concepts to Public Grade 9 Physics Students. PCU Graduate School of Education Research Journal, [S. l.], v. 1, n. 1, p. 168–171, 2025. Disponível em: https://pcujournal.mypublications.net/index.php/gsed/article/view/41. Acesso em: 12 feb. 2026.