Criptografia no Ensino Médio: uma proposta para o ensino de Matrizes

Abstract

This dissertation presents a proposal to work Matrices in High School, using the example of their application in Cryptography. The cryptographic method described and suggested for building up the concept of Matrices is the Hill Cipher. The objective is to o er to Mathematics teachers, and those studying to become teachers, material that will help them develop similar experiences in their classrooms, to overcome the constant challenge of promoting a contextualised Mathematics teaching and learning process, connected whenever possible to the course of scienti c and technological development. Cryptography can serve as an excellent tool in this pursuit. It demonstrates how the introduction of Mathematics in the construction of cryptographic processes accelerated and promoted its development and the consequences of this development on society throughout history.