<?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>S0187-893X2025000300064</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2025.3.89873</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Intervención didáctica para el aprendizaje de estequiometría en estudiantes universitarios]]></article-title>
<article-title xml:lang="en"><![CDATA[Didactic intervention for stoichiometry learning in undergraduate students]]></article-title>
</title-group>
<contrib-group>
<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[Morales-Garcés]]></surname>
<given-names><![CDATA[Susan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Gutiérrez]]></surname>
<given-names><![CDATA[Juan Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<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[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[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica del Maule Facultad de Ciencias Básicas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Chile Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>36</volume>
<numero>3</numero>
<fpage>64</fpage>
<lpage>76</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2025000300064&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2025000300064&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2025000300064&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Debido a la paralización entre 2020-2021 causada por la pandemia COVID-19, se implementórepentinamente el aprendizaje en modalidad online en todos los niveles de la educación chilena, y en 2022 los establecimientos educacionales volvieron a la modalidad presencial, con preocupación por el rendimiento académico de los estudiantes. La estequiometría es una asignatura compleja de enseñar debido al pensamiento abstracto necesario y, especialmente para los estudiantes de primer año de pregrado, podría ser un desafío debido a que para resolver problemas deben organizar datos y utilizar una secuencia lógica para dar una respuesta correcta. Utilizando una tabla para ordenar los datos y un diagrama de flujo para dar una secuencia lógica de pensamiento apoyamos a los estudiantes de estequiometría en la resolución de problemas con un incremento en su rendimiento académico. Se observó una mejora en el desempeño de resolución de problemas estequiométricos de un 3% a un 58%.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Due to the lockdown between 2020-2021 caused by the pandemic COVID-19, online mode learning was suddenly implemented at all levels of Chilean education, and in 2022, educational establishments returned to face-to-face mode, with concern about students&#8217; academic performance. Stoichiometry is a complex subject to teach due to the abstract thinking needed, and especially for first-year undergraduate students, could be a challenge due to solving problems they must organize data, and use a logical sequence to give a correct answer. Using a table to order data, and a flowchart to give a logical sequence of thinking, we support students in stoichiometry in solving problems with an increase in their academic performance. An improvement in stoichiometric problem-solving performance was observed from 3% to 58%.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[estequiometría]]></kwd>
<kwd lng="es"><![CDATA[química general]]></kwd>
<kwd lng="es"><![CDATA[enseñanza universitaria]]></kwd>
<kwd lng="es"><![CDATA[didáctica de la química]]></kwd>
<kwd lng="en"><![CDATA[stoichiometry]]></kwd>
<kwd lng="en"><![CDATA[general chemistry]]></kwd>
<kwd lng="en"><![CDATA[university teaching]]></kwd>
<kwd lng="en"><![CDATA[chemistry didactics]]></kwd>
</kwd-group>
</article-meta>
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<volume>1</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1-18</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
