2014-08-282014-08-282014-03-01KFOURI, Viviane de Oliveira. Fi: o número de ouro. 2014. 63 f. Dissertação (Mestrado Profissional em Matemática em Rede Nacional) - Universidade Federal de Goiás, Goiânia, 2014.http://repositorio.bc.ufg.br/tede/handle/tde/2950It is shown, in this work, a study about the golden number, represented by the greek character (pronounced as \Fi"), in tribute to the greek sculptor F dias, who used to use this number in his works. It is done an algebraic approach, which is shown how to reach the number , using reasons, proportions and equations of second grade. It is also used geometric constructions for its achievement. The used metodology is made of theory and practice, proposing activities where the concret assists the instruction of abstract geometry, in the construction, for example, of the golden rectangle and the logarithmic spiral. It is also shown the intrinsic relationship of the golden number and the Fibonacci sequence and, as well, it is shown that is an irrational and algebric number. The main goal is to promote the thinking of the importance of this number through a project to be developed at the same time as the classes, for students of secondary schools.application/pdfAcesso abertoNúmero de ouroGolden numberMATEMATICA::MATEMATICA APLICADADissertação