@article{alves_de souza_pereira filho_2022,  title={A simple mathematical model underlying Keller’s individualized teaching method},  volume={44},  ISSN={1806-1117},  url={https://doi.org/10.1590/1806-9126-RBEF-2021-0344},  DOI={10.1590/1806-9126-RBEF-2021-0344},  journal={Revista Brasileira de Ensino de Física},  publisher={Sociedade Brasileira de Física - SBF},  author={Alves, Danilo T. and de Souza, Nelson P.C. and Pereira Filho, Silvio C.F.},  year={2022},  pages={e20210344} }