@article{santos_2010,  title={The first steps in vision in the classroom},  volume={32},  ISSN={1806-1117},  url={https://doi.org/10.1590/S1806-11172010000200003},  DOI={10.1590/S1806-11172010000200003},  number={2},  journal={Revista Brasileira de Ensino de Física},  publisher={Sociedade Brasileira de Física - SBF},  author={Santos, A.C.F},  year={2010},  month={Apr},  pages={1–4} }