12 resultados para Leitura - Ensino - Método analítico

em Repositório da Produção Científica e Intelectual da Unicamp


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A new practical experiment involving silver and gold nanoparticle syntheses was introduced in an inorganic chemistry laboratory course for undergraduate students at the Institute of Chemistry, UNICAMP. The nanoparticles were synthesized by the reduction of silver nitrate and tetrachloroauric acid with sodium borohydride and sodium citrate in an aqueous medium. Stabilities of the suspensions were tested using several different reactants including sodium chloride, polyvinylpyrrolidone, polyvinyl alcohol and cistamine. Changes in optical properties were observed by electronic spectra and also by transmission electronic microscopy, which also yielded data for estimating particle size.

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Universidade Estadual de Campinas . Faculdade de Educação Física

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Universidade Estadual de Campinas . Faculdade de Educação Física

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The purpose of this study was to evaluate the effects of a pedagogical intervention to improve the reading comprehension of fourth grade students of a public primary school. Two classes of 28 students were randomly assigned to an experimental or control group. The students were assessed during three different moments by means of an informative questionnaire, a Learning Strategies Scale and two cloze tests for reading comprehension. The intervention consisted of seven sessions which included learning strategies instruction, reading strategies instruction, meta-cognition activation, motivational support and study guidance. Results showed improvement in meta-cognition and in reading comprehension in both groups. However, gains were higher and more consistent in the experimental group.

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Universidade Estadual de Campinas . Faculdade de Educação Física

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Universidade Estadual de Campinas . Faculdade de Educação Física

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Universidade Estadual de Campinas . Faculdade de Educação Física

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Universidade Estadual de Campinas . Faculdade de Educação Física

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Universidade Estadual de Campinas . Faculdade de Educação Física

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Universidade Estadual de Campinas . Faculdade de Educação Física