Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-10-22T13:38:57Z No. of bitstreams: 2 Dissertação - Lourival Carlos Cunha Junior - 2015.pdf: 8702813 bytes, checksum: 307cfb19927718cfa7a667f109f4768f (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-10-22T13:42:02Z (GMT) No. of bitstreams: 2 Dissertação - Lourival Carlos Cunha Junior - 2015.pdf: 8702813 bytes, checksum: 307cfb19927718cfa7a667f109f4768f (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2015-10-22T13:42:02Z (GMT). No. of bitstreams: 2 Dissertação - Lourival Carlos Cunha Junior - 2015.pdf: 8702813 bytes, checksum: 307cfb19927718cfa7a667f109f4768f (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2015-05-25 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This dissertation aims to analyze how the use of mathematical tricks, educational games and alternative algorithms for multiplication and Division of integers contribute to learning of multiplication and Division operations between positive integers. Research participants were students of a class of adult and youth education of the 2o segment of the Central Penitentiary Progression of Distrito Federal (CPP-DF). The analysis of the results was made from questionnaires answered by the students and observations by the teacher during class. The introduction of mathematical operations took place initially by mathematical tricks, then were presented alternative ways to perform them later manipulation of new algorithms, unraveling the tricks and finally organizing with mathematical games. The participants demonstrated commitment, dedication and interest in the tricks, games and alternative algorithms. The objective of this work was achieved. We realized that there was in fact an improvement in pupils ’ learning. / Esta dissertação tem como objetivo analisar como o uso de truques matemáticos, jogos pedagógicos e algoritmos alternativos para a multiplicação e divisão de números inteiros contribuem para o aprendizado das operações multiplicação e divisão entre números inteiros positivos. Os participantes da pesquisa foram alunos de uma turma de Educação de Jovens e Adultos do 2o Segmento do Centro de Progressão Penitenciária do Distrito Federal (CPP-DF). A análise dos resultados foi feita a partir de questionários respondidos pelos alunos e observações realizadas pelo professor durante as aulas. A introdução das operações matemáticas ocorreu inicialmente por truques matemáticos, em seguida foram apresentadas formas alternativas de realizá-las, posteriormente a manipulação dos novos algoritmos, desvendando os truques e finalmente sistematizando com jogos matemáticos. Os participantes demonstraram empenho, dedicação e interesse em relação aos truques, jogos e aos algoritmos alternativos. O objetivo do trabalho foi alcançado. Percebemos que houve de fato uma melhoria na aprendizagem dos alunos.

This master's thesis deals with virtual currency called Bitcoin. It describes the functioning of the currency of technical perspective especially the implementation of the transaction, the way of its validation and ensuring the integrity by using cryptographic functions. Furthermore, it describes the principle of the Bitcoin creation, particularly mining method called pooled mining. The thesis also describes the communication protocols and design of architecture to acceleration of the bitcoin mining. Finally, there are described tests, assessment and proposals for the continuation of work.