Carvalho, V.D. and Carvalho, S.M.S. de 2020. Making use of cryptography to arouse interest and motivate meaningful learning in mathematical functions teaching. BRAZILIAN ELECTRONIC JOURNAL OF MATHEMATICS. 2, 3 (Dec. 2020), 37–51. DOI:https://doi.org/10.14393/BEJOM-v2-n3-2021-56308.