MEADOR, K. Tiered Activities for Learning Centers: Differentiation in Math, Language Arts, Science and Social Studies. Education Review, [S. l.], 2015. DOI: 10.14507/er.v0.732. Disponível em: https://edrev.asu.edu/index.php/ER/article/view/732. Acesso em: 1 may. 2024.