<?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>0185-2698</journal-id>
<journal-title><![CDATA[Perfiles educativos]]></journal-title>
<abbrev-journal-title><![CDATA[Perfiles educativos]]></abbrev-journal-title>
<issn>0185-2698</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Investigaciones sobre la Universidad y la Educación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-26982023000200054</article-id>
<article-id pub-id-type="doi">10.22201/iisue.24486167e.2023.180.60206</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio exploratorio sobre la efectividad del método abierto basado en números (ABN) en las habilidades de cálculo mental en educación primaria]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Wilson]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González San Martín]]></surname>
<given-names><![CDATA[Ivonne]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aravena Vásquez]]></surname>
<given-names><![CDATA[María José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cerda-Etchepare]]></surname>
<given-names><![CDATA[Gamal]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad O´Higgins Instituto de Ciencias Sociales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Santo Tomás Centro Interdisciplinario de Innovación Educativa ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Pontificia Universidad Católica de Chile  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Concepción  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>45</volume>
<numero>180</numero>
<fpage>54</fpage>
<lpage>70</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-26982023000200054&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-26982023000200054&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-26982023000200054&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El trabajo presenta una comparación respecto del desempeño en tareas de cálculo mental en educación primaria, entre establecimientos educativos que adoptan el método abierto basado en números (ABN) respecto de otros que imparten una enseñanza tradicional, relacionada con las prácticas habituales del profesorado, o bien sugerida en algunos libros de texto. La experimentación se llevó a cabo en cursos de primer año de primaria de cuatro escuelas, dos de ellas públicas, una particular privada y una particular subvencionada de Chile. Se diseñó y aplicó una prueba de cálculo mental de ejercicios aditivos con dos y tres sumandos, con la cual se midieron habilidades de rapidez y de precisión. Un análisis de diferencias inter-grupos evidencia la efectividad de la metodología ABN por sobre la tradicional en las mediciones realizadas. Se discuten los resultados y sus proyecciones dentro del contexto educativo chileno.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This work presents a comparison in the performance of mental calculation tasks in primary education, between educational institutions adopting an open method based on numbers (ABN) and those employing traditional teaching methods, related to habitual practices by professors or as suggested by some textbooks. This experiment was conducted during the first-year courses of primary education in four schools, two of them public, another one was private, and the fourth one was private with subsidies from the Chilean government. We designed and applied a mental calculation test with two and three sum exercises. We used these to measure speed and precision. An analysis of inter-group differences showed the effectiveness of the ABN methodology when compared to traditional teaching. We discuss the results and their projections within Chile&#8217;s educational context.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Competencia matemática]]></kwd>
<kwd lng="es"><![CDATA[Cálculo mental]]></kwd>
<kwd lng="es"><![CDATA[Métodos de enseñanza]]></kwd>
<kwd lng="es"><![CDATA[Enseñanza de las matemáticas]]></kwd>
<kwd lng="es"><![CDATA[Educación primaria]]></kwd>
<kwd lng="en"><![CDATA[Math competency]]></kwd>
<kwd lng="en"><![CDATA[Mental calculations]]></kwd>
<kwd lng="en"><![CDATA[Teaching methods]]></kwd>
<kwd lng="en"><![CDATA[Math teaching]]></kwd>
<kwd lng="en"><![CDATA[Primary education]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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