<?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>1665-2436</journal-id>
<journal-title><![CDATA[Revista latinoamericana de investigación en matemática educativa]]></journal-title>
<abbrev-journal-title><![CDATA[Relime]]></abbrev-journal-title>
<issn>1665-2436</issn>
<publisher>
<publisher-name><![CDATA[Comité Latinoamericano de Matemática Educativa A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-24362017000100095</article-id>
<article-id pub-id-type="doi">10.12802/relime.17.2014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis de problemas de proporcionalidad compuesta en libros de texto de 2º de ESO]]></article-title>
<article-title xml:lang="en"><![CDATA[Analysis of compound proportion problems in 8th grade textbooks]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Juste]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz Escolano]]></surname>
<given-names><![CDATA[José María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oller Marcén]]></surname>
<given-names><![CDATA[Antonio M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega del Rincón]]></surname>
<given-names><![CDATA[Tomás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Zaragoza Departamento de Matemáticas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Zaragoza Departamento de Matemáticas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro Universitario de la Defensa de Zaragoza  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Valladolid Departamento de Didáctica de las Ciencias Experimentales, Sociales y de la Matemática ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>20</volume>
<numero>1</numero>
<fpage>95</fpage>
<lpage>122</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-24362017000100095&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-24362017000100095&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-24362017000100095&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En este trabajo realizamos un estudio detallado de los problemas de proporcionalidad compuesta de doce libros de texto españoles de segundo curso de Educación Secundaria Obligatoria (13-14 años). En concreto, se realiza un análisis de contenido textual y a priori, clasificando los problemas atendiendo a su contexto, su estructura, su posición y papel dentro de la Unidad Didáctica correspondiente y a la tipología de magnitudes utilizadas. Entre otros resultados se concluye que, aunque la presencia de problemas varía ligeramente en cuanto a número entre los distintos textos, el tratamiento es bastante homogéneo respecto a su contexto, estructura y magnitudes implicadas: la mayoría de los problemas son de contexto realista, de valor perdido y con cinco cantidades de magnitud extensivas. También se detecta poca presencia de problemas de comparación cuantitativa y de situaciones de tipo inversa-inversa, así como poca presencia y variedad de magnitudes intensivas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: In this work, we make a detailed study of compound proportionality problems from twelve 8th grade (age 13-14) Spanish textbooks. In particular, we perform an a priori, textual content analysis, classifying the problems according to their context, their structure and their position and role in the lesson where they appear. We also focus on the typology of the magnitudes used by the authors. Among other results, we conclude that, even if the number of problems varies slightly between different books, the treatment given to them is quite homogeneous regarding the context, structure and use of magnitudes: most of them are realistic missing value problems in which five quantities of extensive magnitudes appear. We also detect very few problems involving quantitative comparison or situations of &#8216;inverse-inverse&#8217; type together with a very little use of intensive magnitudes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo: Neste trabalho realizamos um estudo pormenorizado dos problemas de proporcionalidade composta de doze livros de texto espanhóis de segundo ano de Educação Secundária Obrigatória (13-14 anos). Mais concretamente, é realizada uma análise de conteúdo textual e a priori, classificando os problemas atendendo ao seu contexto, à sua estrutura, à sua posição e papel dentro da Unidade Didática correspondente e à tipologia de magnitudes utilizadas. Entre outros resultados é concluído que, embora a presença de problemas varie ligeiramente quanto ao número entre os diferentes textos, o tratamento é bastante homogéneo relativamente ao seu contexto, estrutura e magnitudes envolvidas: a maioria dos problemas são de contexto realista, de valor perdido e com cinco quantidades de magnitude extensivas. Também se detecta pouca presença de problemas de comparação quantitativa e de situações de tipo inversa-inversa, bem como pouca presença e variedade de magnitudes intensivas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="fr"><p><![CDATA[Résumé: Dans ce travail nous étudions en détail les problèmes de proportionnalité composée de douze livres de texte en langue espagnole de la deuxième année de l'enseignement secondaire (13-14 ans). Plus précisément, une analyse de contenu textuel et a priori est effectuée en classifiant les problèmes en fonction de leur contexte, leur structure, leur position et rôle au sein de l'unité et selon les types de grandeurs utilisées. Parmi des autres résultats, il est conclu que, bien que la présence de problèmes varie légèrement en nombre entre les différents textes, le traitement est assez homogène par rapport à leur contexte, leur structure et les grandeurs utilisées: la plupart des problèmes sont problèmes « du valeur perdu » dans un contexte réaliste, et impliquent cinq quantités de grandeurs extensives. Peu de présence de problèmes de comparaison quantitatives et de situations de type inverse-inverse, et peu de présence de grandeurs intensives sont détectés.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Clasificación de problemas]]></kwd>
<kwd lng="es"><![CDATA[proporcionalidad compuesta]]></kwd>
<kwd lng="es"><![CDATA[libros de texto]]></kwd>
<kwd lng="es"><![CDATA[secundaria]]></kwd>
<kwd lng="en"><![CDATA[Problem classification]]></kwd>
<kwd lng="en"><![CDATA[compound proportion]]></kwd>
<kwd lng="en"><![CDATA[textbooks]]></kwd>
<kwd lng="en"><![CDATA[secondary]]></kwd>
<kwd lng="pt"><![CDATA[Classificação de problemas]]></kwd>
<kwd lng="pt"><![CDATA[proporcionalidade composta]]></kwd>
<kwd lng="pt"><![CDATA[livros de texto]]></kwd>
<kwd lng="pt"><![CDATA[escola secundária]]></kwd>
<kwd lng="fr"><![CDATA[Classification des problèmes]]></kwd>
<kwd lng="fr"><![CDATA[proportionnalité composée]]></kwd>
<kwd lng="fr"><![CDATA[manuels scolaires]]></kwd>
<kwd lng="fr"><![CDATA[école secondaire]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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