tag:blogger.com,1999:blog-49311691466042846692024-03-05T00:55:40.552-08:00Prof. Leonardo BarbozaInformática e MatemáticaProfessor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-4931169146604284669.post-14951147802756894312013-04-23T20:12:00.003-07:002013-04-23T21:02:56.460-07:00Marcador de Livro<div style="text-align: center;">
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<br />Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com6tag:blogger.com,1999:blog-4931169146604284669.post-24024037280523073352013-04-23T19:54:00.000-07:002013-04-23T20:50:48.229-07:00Aula de Potenciação<br />
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Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com4tag:blogger.com,1999:blog-4931169146604284669.post-48566183157490101362013-04-06T17:14:00.001-07:002013-04-22T07:17:05.793-07:00Origem do símbolo da raiz<span style="font-size: small;"><span style="font-family: "Trebuchet MS",sans-serif;">
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<span style="font-size: small;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: #333333;">Claro,
que a maioria deve saber que extrair a Raiz Quadrada de um número. É
encontrar um número, que multiplicado por si próprio, seja o valor que
está na raiz. Essa é maneira que aprendemos nas escolas. </span></span></span></div>
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<span style="font-size: small;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: #333333;">Mas
pense bem, o que a palavra "RAIZ" tem a ver com isso? Porque, em nossa
língua a palavra RAIZ tem a ver com planta, árvore, mas não com número.
Para isso, temos que voltar um pouco na história da matemática, para
entender como surgiu a raiz quadrada de um número. </span></span></span></div>
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<span style="font-size: small;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: #333333;">Em 1202, no livro <i>líber abbaci</i> (livro do ábaco ou livro de cálculo) de </span><b>Leonardo de Pisa</b>, mais conhecido como <b>Fibonacci</b><span style="color: #333333;">, traz da seguinte maneira, o que hoje chamamos de raiz quadrada: <i>"radix quadratum 16 aequalis 4",</i><b><br /> </b>escrito em <i>latim</i>, que traduzindo para o português, é: "O lado do Quadrada de 16 é igual a 4". Podemos perceber que a palavra <i>Radix</i> não tem nada a ver com Raiz, pois, a tradução correta de <i>Radix </i>é Lado.</span></span></span></div>
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<span style="color: #333333;">Fibonacci,
trouxe essa importante informação para a Europa, graças aos estudos de
obras árabes que tinha conhecido quando estava trabalhando com o seu pai
no norte da Africa, como comerciante.<i><br /> </i></span></div>
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<span style="color: #333333;">Agora, a origem do símbolo √ está associado a<span style="font-size: small;"> forma abrevidad<span style="font-size: small;">a</span></span> da palavra <i>radix</i>,
que com o passar do tempo, foram se fazendo cópias em cima de cópias, o
que acabou resultando no símbolo que usamos hoje em dia, um alongamento
ou variância da letra <b><i>r</i></b>.</span><br />
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</span></span>Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com14tag:blogger.com,1999:blog-4931169146604284669.post-17715016722878983362013-03-31T18:27:00.000-07:002013-04-01T19:09:07.144-07:00PESQUISA - 1º BIMESTRE<span style="font-family: "Trebuchet MS",sans-serif;"><b><span style="color: blue;">TEMA: SOROBAN</span></b></span><br />
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<span style="font-family: "Trebuchet MS",sans-serif;"><b><span style="color: red;">Objetivo: </span></b>Conhecer a ferramenta milenar de calcular.</span><br />
<span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: red;"><b>Valor: </b></span>1,0 ponto (individual).</span><br />
<span style="font-family: "Trebuchet MS",sans-serif;"><b><span style="color: red;">Entrega: </span></b><u>10/04/2013</u> (F6.1, F6.2 e F6.3) e <u>12/04/2013</u> (F6.4 e F6.5)</span><br />
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<span style="font-family: "Trebuchet MS",sans-serif;">Em <b><u>folha de papel almaço pautado</u></b> e <u><b>manuscrita</b></u> sua pesquisa deve conter:</span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">- Cabeçalho da escola com nome, número e turma;</span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">- Pequena introdução sobre o SOROBAN (Máximo 5 linhas);</span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">- Conter os tópicos comentados: Origem, Funcionamento e Aplicação (Máximo 5 linhas para cada);</span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">- Uma pequena conclusão comparando a calculadora (Máximo 5 linhas);</span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">- Referência(s) bibliográfica(s) (Livro, Site ou Revista).</span><br />
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<span style="font-family: "Trebuchet MS",sans-serif;"><b><span style="color: red;">Observações: </span></b></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">- Deve ser feito com caneta (azul ou preta) e sem rasuras;</span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">- Não será prolongado o prazo de entrega.</span><br />
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<br />Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com13tag:blogger.com,1999:blog-4931169146604284669.post-43415753919980486242013-03-31T17:55:00.000-07:002013-04-03T20:00:20.470-07:00Potenciação e Radiciação de números naturais<span style="font-family: "Trebuchet MS",sans-serif;">Vídeoaula sobre Potências e Raízes</span><br />
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<br />Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com7tag:blogger.com,1999:blog-4931169146604284669.post-7914818047485321812013-03-31T17:38:00.002-07:002013-03-31T17:40:13.791-07:00Sequência Quadrada<span style="font-family: "Trebuchet MS",sans-serif;"></span>
<span style="font-family: "Trebuchet MS",sans-serif;">1 x 1 = <span style="color: red;">1</span></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">2 x 2 = <span style="color: red;">4</span></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">3 x 3 = <span style="color: red;">9</span></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">4 x 4 = <span style="color: red;">16</span> </span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">5 x 5 = <span style="color: red;">25</span></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">6 x 6 = <span style="color: red;">36</span></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">7 x 7 = <span style="color: red;">49</span></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">8 x 8 = <span style="color: red;">64</span></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">9 x 9 = <span style="color: red;">81</span></span><br />
<span style="font-family: "Trebuchet MS",sans-serif;">10 x 10 = <span style="color: red;">100</span></span><br />
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<b><span style="color: blue;"><span style="font-family: "Trebuchet MS",sans-serif;">Por que esses números recebem esse nome (Sequência quadrada)?</span></span></b>Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com5tag:blogger.com,1999:blog-4931169146604284669.post-87866901551769542422013-03-31T17:04:00.002-07:002013-03-31T17:05:09.791-07:00JMJ 2013 - Clipe Oficial<span style="font-family: "Trebuchet MS",sans-serif;">JMJ 2013 - Clipe Oficial </span><br />
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<br />Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com4tag:blogger.com,1999:blog-4931169146604284669.post-40354973850224006672013-03-31T17:01:00.001-07:002013-03-31T17:04:54.175-07:00Gentileza (Marisa Monte)Vídeo Clipe - Gentileza (Marisa Monte)<br />
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<br />Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com5tag:blogger.com,1999:blog-4931169146604284669.post-58891442508063577152013-03-31T16:43:00.000-07:002013-03-31T16:43:05.671-07:00Pato Donald no país da Matemática<br />
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<br />Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com5tag:blogger.com,1999:blog-4931169146604284669.post-20359340325448281372013-03-31T16:40:00.001-07:002013-03-31T16:40:20.895-07:00A história do número 1<span style="font-family: "Trebuchet MS",sans-serif;">A história do número 1</span><br />
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<br />Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com6tag:blogger.com,1999:blog-4931169146604284669.post-14525474546851000722013-03-31T16:36:00.003-07:002013-03-31T16:36:52.310-07:00Matemática na TV<span style="font-family: "Trebuchet MS",sans-serif;">Usando o ábaco para fazer contas</span><br />
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<br />Professor Leonardohttp://www.blogger.com/profile/05786845834648046794noreply@blogger.com8