<?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>S0187-893X2019000100042</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2019.1.67658</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Extracción de ADN con material cotidiano: diseño, implementación y validación de una intervención activa interdisciplinar]]></article-title>
<article-title xml:lang="en"><![CDATA[DNA extraction using household materials: design, implementation, and validation of an interdisciplinary active intervention]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallego]]></surname>
<given-names><![CDATA[Rocío Esteban]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marcos-Merino]]></surname>
<given-names><![CDATA[José María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ochoa de Alda]]></surname>
<given-names><![CDATA[Jesús Gómez]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Extremadura Facultad de Educación Departamento de Didáctica de las Ciencias Experimentales y las Matemáticas]]></institution>
<addr-line><![CDATA[Badajoz ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Extremadura Facultad de Formación del Profesorado Departamento de Didáctica de las Ciencias Experimentales y las Matemáticas]]></institution>
<addr-line><![CDATA[Cáceres ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>30</volume>
<numero>1</numero>
<fpage>42</fpage>
<lpage>57</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2019000100042&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2019000100042&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2019000100042&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las prácticas tradicionales de ciencias, basadas en seguir instrucciones cerradas, no proporcionan resultados de aprendizaje satisfactorios. Esto se debe, en parte, a que no tienen una aplicación inmediata, carecen de una perspectiva interdisciplinar y el alumno no desarrolla un papel activo en su resolución. Una alternativa es su planteamiento como pequeñas investigaciones en las que los alumnos desarrollan su propio guion a través de preguntas elaboradas por el docente. Con el fin de aumentar el número de propuestas de prácticas activas, en este trabajo se describe y valida una intervención didáctica, la extracción de ADN con material cotidiano, centrada en el aprendizaje activo interdisciplinar. Esta práctica es muy atractiva para los alumnos de educación secundaria, bachiller o maestros en formación ya que, al desarrollarse bajo investigación dirigida, hace que los estudiantes participen en la búsqueda, interpretación y utilización de algunos fundamentos científicos de Química, Física y Biología. El análisis de la efectividad de la implementación de esta intervención durante 3 cursos académicos muestra que esta favorece el aprendizaje interdisciplinar.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Traditional practical activities in science, based on following detailed instructions, do not provide satisfactory learning outcomes. This is due in part to the lack of effective applicability for students, the absence of an interdisciplinary perspective and the lack an active involvement of students in practice resolution. One alternative is to use an enquiry-based approach in which students research and elaborate its own protocol guided by teacher. In this contribution, we describe and validate an educational intervention focused on interdisciplinary active learning to increase the availability of practical activities for secondary and bachelor students as well as prospective teachers. An enquiry-based approach is followed to guide the process of DNA extraction using household materials. This activity gets students involved in finding, interpreting, and explaining some scientific fundamentals of Chemistry, Physics, and Biology. The effectiveness of the educational intervention was estimated during three successive academic years. Results support the hypothesis that this educational intervention favours interdisciplinary learning.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Aprendizaje activo]]></kwd>
<kwd lng="es"><![CDATA[Investigación dirigida]]></kwd>
<kwd lng="es"><![CDATA[Interdisciplinariedad]]></kwd>
<kwd lng="es"><![CDATA[Ciencia-Tecnología-Sociedad y Biotecnología]]></kwd>
<kwd lng="en"><![CDATA[Active learning]]></kwd>
<kwd lng="en"><![CDATA[Enquiry-based learning]]></kwd>
<kwd lng="en"><![CDATA[Interdisciplinary]]></kwd>
<kwd lng="en"><![CDATA[Science-Technology-Society]]></kwd>
<kwd lng="en"><![CDATA[Biotechnology]]></kwd>
</kwd-group>
</article-meta>
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