<?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>S0187-893X2024000400089</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2024.4.88280</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estrategia docente para enseñar estereoquímica: una propuesta para convertir de una representación a otra]]></article-title>
<article-title xml:lang="en"><![CDATA[A teaching strategy for teaching stereochemistry: a proposal for converting from one representation to another]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrientos]]></surname>
<given-names><![CDATA[Claudio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moris]]></surname>
<given-names><![CDATA[Silvana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez López]]></surname>
<given-names><![CDATA[Javiera]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Católica del Maule Centro de Investigación de Estudios Avanzados del Maule Vicerrectoría de Investigación y Postgrado]]></institution>
<addr-line><![CDATA[Talca ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,aff2  ]]></institution>
<addr-line><![CDATA[ Talca]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>35</volume>
<numero>4</numero>
<fpage>89</fpage>
<lpage>98</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2024000400089&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2024000400089&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2024000400089&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este estudio se desarrolló una propuesta para enseñar estereoquímica con estudiantes universitarios de la carrera de química y farmacia, con el objetivo de identificar las representaciones de estructuras orgánicas que son más sencillas para el estudiantado utilizando una estrategia didáctica para la identificación, asignación de la configuración absoluta y la comprensión de la estereoquímica en el estudio de la estereoquímica de compuestos orgánicos. Se presentó al estudiantado un esquema con diferentes representaciones y se explicaron las relaciones entre unas y otras, para facilitar la interconversión y que pudieran asignar correctamente las configuraciones de los estereocentros. Se aplicó un pretest previo a la intervención con las proyecciones de Fischer, fórmulas de Haworth, y de cuñas y líneas y conformación silla, mostrando que sólo en las proyecciones de Fischer y en las fórmulas de cuñas y líneas pudieron asignar las configuraciones absolutas de los estereocentros. Sin embargo, después de la intervención, el estudiantado pudo realizar interconversiones en las representaciones de Haworth y silla, aumentando su rendimiento de 0% a 65% y de 0% a 52,5% respectivamente, en el caso de las cuñas y líneas el aumento fue de 22,2% a 60%, y en las representaciones de Fischer de 81,3% a 100%, lo que demuestra que la proyección Fischer era la representación más sencilla para la asignación de la configuración absoluta de los estereocentros.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of this study was to develop a proposal for the teaching of stereochemistry to university chemistry and pharmacy students. The aim was to identify the representations of organic structures that are easiest for the students, using a didactic strategy for the identification, assignment of the absolute configuration and understanding of stereochemistry in the study of the stereochemistry of organic compounds. A scheme comprising different representations was presented to the students, with the relationships between them explained. This was done to facilitate interconversion and enable the students to correctly assign the configurations of the stereocentres. A pre-test was applied before the intervention, which involved Fischer projections, wedge and line formulas, Haworth and chair formulas. The results showed that only in Fischer projections and wedge and line formulas were the students able to assign the absolute configurations of the stereocentres. However, following the intervention, the students demonstrated the ability to perform interconversions in the Haworth and chair representations, resulting in an improvement in their performance from 0% to 65% and from 0% to 52.5%, respectively, in the case of wedges and lines the increase was from 22.2% to 60%, and from 81.3% to 100% for Fischer representations, indicating that the Fischer projection was the simplest representation for the assignment of the absolute configuration of the stereocentres.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[química orgánica]]></kwd>
<kwd lng="es"><![CDATA[didáctica de la química]]></kwd>
<kwd lng="es"><![CDATA[enseñanza universitaria]]></kwd>
<kwd lng="es"><![CDATA[representaciones para compuestos orgánicos]]></kwd>
<kwd lng="es"><![CDATA[estereoquímica]]></kwd>
<kwd lng="en"><![CDATA[organic chemistry]]></kwd>
<kwd lng="en"><![CDATA[chemistry didactics]]></kwd>
<kwd lng="en"><![CDATA[university teaching]]></kwd>
<kwd lng="en"><![CDATA[representation of organic compounds]]></kwd>
<kwd lng="en"><![CDATA[stereochemistry]]></kwd>
</kwd-group>
</article-meta>
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