<?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>0187-893X</journal-id>
<journal-title><![CDATA[Educación química]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. quím]]></abbrev-journal-title>
<issn>0187-893X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Química]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-893X2016000100037</article-id>
<article-id pub-id-type="doi">10.1016/j.eq.2015.09.007</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Studying the importance of soil organic matter: An educational proposal for secondary education]]></article-title>
<article-title xml:lang="es"><![CDATA[Estudiando la importancia de la materia orgánica del suelo: una propuesta educativa para educación secundaria]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zuazagoitia]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villarroel]]></surname>
<given-names><![CDATA[José Domingo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of the Basque Country  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>ES</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<volume>27</volume>
<numero>1</numero>
<fpage>37</fpage>
<lpage>42</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2016000100037&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2016000100037&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2016000100037&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Although the importance of including in the curriculum of all educational levels issues related to soil science has been strongly highlighted, the fact is that the importance that the quality and availability of organic matter in the quality of soil have received very little attention when it comes to considering educational practices in classrooms. This paper brings an educational proposal for teaching the transcendence of organic matter in soil at secondary level. The learning unit presented is based on essential chromatography techniques and allows the qualitative study of soil organic matter. The ultimate purpose is to offer basic educational tools for reflection on the implication that soil has in order to maintain biodiversity and food production.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Aunque la importancia de incluir en el plan de estudios de todos los niveles educativos cuestiones relacionadas con la ciencia del suelo ha sido fuertemente resaltada, el hecho es que la importancia de la calidad y la disponibilidad de la materia orgánica en el suelo han recibido muy poca atención cuando se consideraran las prácticas educativas en las aulas. Este documento aporta una propuesta educativa para la enseñanza de la trascendencia de la materia orgánica en el suelo en el nivel secundario. La unidad de aprendizaje presentada se basa en las técnicas esenciales de la cromatografía y permite el estudio cualitativo de la materia orgánica del suelo. El objetivo final es ofrecer herramientas educativas básicas para la reflexión sobre la implicación que tiene el suelo a la hora de mantener la biodiversidad y la producción de alimentos.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Métodos de enseñanza]]></kwd>
<kwd lng="es"><![CDATA[Educación de pregrado]]></kwd>
<kwd lng="es"><![CDATA[Ciencia del suelo]]></kwd>
<kwd lng="es"><![CDATA[Educación secundaria]]></kwd>
<kwd lng="en"><![CDATA[Teaching methods]]></kwd>
<kwd lng="en"><![CDATA[Undergraduate education]]></kwd>
<kwd lng="en"><![CDATA[Soil science]]></kwd>
<kwd lng="en"><![CDATA[K-12 education]]></kwd>
</kwd-group>
</article-meta>
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