<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1516-7313</journal-id>
<journal-title><![CDATA[Ciência & Educação (Bauru)]]></journal-title>
<abbrev-journal-title><![CDATA[Ciência educ.]]></abbrev-journal-title>
<issn>1516-7313</issn>
<publisher>
<publisher-name><![CDATA[Universidade Estadual Paulista (UNESP)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1516-73132013000100006</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[“Poliedro é um sólido, correto?”: um estudo com graduandos interagindo em um chat sobre a definição de poliedro]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nieto]]></surname>
<given-names><![CDATA[Rodrigo Zuza]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bairral]]></surname>
<given-names><![CDATA[Marcelo Almeida]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A06">
<institution><![CDATA[,UFRRJ  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A06">
<institution><![CDATA[,UFRRJ  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2013</year>
</pub-date>
<volume>19</volume>
<numero>01</numero>
<fpage>73</fpage>
<lpage>88</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_arttext&amp;pid=S1516-73132013000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_abstract&amp;pid=S1516-73132013000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_pdf&amp;pid=S1516-73132013000100006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Na pesquisa educacional, são escassos os estudos que analisam a construção de conceitos geométricos mediante interações à distância. Essa investigação está focada no entendimento de futuros professores sobre a definição de poliedro. O artigo é fruto de uma pesquisa que analisa interações em ambientes virtuais de aprendizagem. Apresentaremos, resumidamente, o cenário que foi elaborado para ser um curso sobre poliedros estrelados e, posteriormente, analisaremos as interações em um de seus espaços: o chat. A investigação sublinha que a análise em um chat deve movimentar-se de uma visão global para uma visão focada nas reflexões individuais/coletivas. O chat mostrou ser um cenário que oportunizou, aos graduandos, refletirem sobre a definição de poliedros em três âmbitos: um no contexto dos sólidos geométricos, um focado nos seus elementos (faces, arestas e vértices) e outro centrado no número de dimensões.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Educational research studies that analyze the construction of geometric concepts through distance interactions are scarce. This study is focused on pre-service teachers’ understanding about the definition of a polyhedron. The article is based on research that analyses interactions in virtual scenarios of learning. Briefly, we will present the environment that was designed to be a course about star polyhedrons and, later, we analyze the interactions in one of its forms: that of chat. The investigation and analysis of one chat shows that it must move from a global vision to one focused on individual and collective reflections. The chat was shown to be a scenario that improved pre-service teachers’ reflection about the definition of polyhedrons in three areas: in the context of geometric solids; of its elements (faces, vertices and edges); and in the number of dimensions.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Ambiente Virtual de Aprendizagem]]></kwd>
<kwd lng="pt"><![CDATA[Chat]]></kwd>
<kwd lng="pt"><![CDATA[Ensino de Matemática]]></kwd>
<kwd lng="pt"><![CDATA[Poliedro]]></kwd>
<kwd lng="pt"><![CDATA[Geometria]]></kwd>
<kwd lng="en"><![CDATA[Virtual Learning Environment]]></kwd>
<kwd lng="en"><![CDATA[Ler Foneticamente Chat]]></kwd>
<kwd lng="en"><![CDATA[Mathematics Teaching]]></kwd>
<kwd lng="en"><![CDATA[Polyhedron]]></kwd>
<kwd lng="en"><![CDATA[Geometry]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <font face="Arial, Helvetica, sans-serif"> <h2>&nbsp;&ldquo;Poliedro &eacute; um  s&oacute;lido, correto?&rdquo;: um estudo com graduandos interagindo em um chat sobre a  defini&ccedil;&atilde;o de poliedro.</h2> <h3>&ldquo;A Polyhedron is a  solid, right?&rdquo; a study with pre-service teachers interacting in a chat about  the definition of a polyhedron.</h3>     <p>&nbsp;</p> <h4>Rodrigo Zuza Nieto, Marcelo Almeida Bairral    <br> </h4> </font>      ]]></body>
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