<?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>2448-8089</journal-id>
<journal-title><![CDATA[Educación matemática]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. mat.]]></abbrev-journal-title>
<issn>2448-8089</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Investigación y Divulgación de la Educación Matemática A.C.; Universidad de Guadalajara]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-80892022000200289</article-id>
<article-id pub-id-type="doi">10.24844/em3402.11</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Esquemas de resolución de problemas de Fermi como herramienta de diseño y gestión para el profesor]]></article-title>
<article-title xml:lang="en"><![CDATA[Fermi problem activity templates as a design and management tool for the teacher]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[Lluís]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ärlebäck]]></surname>
<given-names><![CDATA[Jonas B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universitat Autònoma de Barcelona  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Linköping Universitet  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Sweden</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>34</volume>
<numero>2</numero>
<fpage>289</fpage>
<lpage>309</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-80892022000200289&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-80892022000200289&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-80892022000200289&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se presenta una caracterización de las resoluciones posibles a un problema de Fermi a partir de los Esquemas de Resolución de Problemas de Fermi (ERPF). El artículo presenta la fundamentación teórica basada en investigaciones previas sobre problemas de Fermi en Educación Matemática y otros campos de investigación que permite identificar las cuatro actividades principales que pueden utilizarse al resolverlos. Estas actividades son la estimación razonada, la experimentación, la búsqueda de datos de fuentes fiables y la recogida y tratamiento estadístico de datos. A partir de estas actividades se concretan los ERPF y se discuten sus posibilidades como herramientas para la gestión y el diseño de actividades de aula. Se incluyen ejemplos concretos de propuestas de aula para sustentar tanto el trabajo de los alumnos como las opciones de diseño de actividades y gestión que habilitan los ERPF para fomentar la resolución de problemas y la modelización matemática.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This article presents a characterization of the possible resolutions to a Fermi problem from the Fermi problem Activity Templates (FpAT). The article presents the theoretical foundation based on previous research on Fermi problems in Mathematics Education and other fields of research that allows the identification of the four main activities that can be used when solving them. These activities are reasoned estimation, experimentation, searching for data from reliable sources, and statistical data collection and processing. From these activities, the FpAT are specified and their possibilities as tools for the management and design of classroom activities are discussed. Specific examples of classroom proposals are included to support both the work of students and the activity design and management options enabled by the FpAT to promote problem solving and mathematical modelling.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Problemas de Fermi]]></kwd>
<kwd lng="es"><![CDATA[modelización matemática]]></kwd>
<kwd lng="es"><![CDATA[diseño de tareas]]></kwd>
<kwd lng="en"><![CDATA[Fermi problems]]></kwd>
<kwd lng="en"><![CDATA[mathematical modeling]]></kwd>
<kwd lng="en"><![CDATA[task design]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ärlebäck]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterising mathematical activities promoted by Fermi problems]]></article-title>
<source><![CDATA[For the Learning of Mathematics]]></source>
<year>2019</year>
<volume>39</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>10-3</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ärlebäck]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Civil]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Gorgorió]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extending Modelling Activity Diagrams as a tool to characterise mathematical modelling processes]]></article-title>
<source><![CDATA[The Mathematics Enthusiast]]></source>
<year>2018</year>
<volume>16</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>211-30</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Gorgorió]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Devising a plan to solve Fermi problems involving large numbers]]></article-title>
<source><![CDATA[Educational Studies in Mathematics]]></source>
<year>2014</year>
<volume>86</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>79-96</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Gorgorió]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Students Estimating Large Quantities: From Simple Strategies to the Population Density Model]]></article-title>
<source><![CDATA[EURASIA Journal of Mathematics, Science and Technology Education]]></source>
<year>2018</year>
<volume>14</volume>
<numero>10</numero>
<issue>10</issue>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Gorgorió]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Using large number estimation problems in primary education classrooms to introduce mathematical modelling]]></article-title>
<source><![CDATA[International Journal of Innovation in Science and Mathematics Education]]></source>
<year>2019</year>
<volume>27</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>45-57</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abassian]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Safi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Bush]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bostic]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Five different perspectives on mathematical modeling in mathematics education]]></article-title>
<source><![CDATA[Investigations in Mathematics Learning]]></source>
<year>2020</year>
<volume>12</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>53-65</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Allison]]></surname>
<given-names><![CDATA[S. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Segrè]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[H. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Enrico Fermi 1901-1954]]></article-title>
<source><![CDATA[Physics Today]]></source>
<year>1955</year>
<numero>8</numero>
<issue>8</issue>
<page-range>9-13</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sherman]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Applying the Fermi estimation technique to business problems]]></article-title>
<source><![CDATA[Journal of Applied Business and Economics]]></source>
<year>2010</year>
<volume>10</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>33-42</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ärlebäck]]></surname>
<given-names><![CDATA[J. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On the use of realistic Fermi problems for introducing mathematical modelling in school]]></article-title>
<source><![CDATA[The Mathematics Enthusiast]]></source>
<year>2009</year>
<volume>6</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>331-64</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ärlebäck]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The use and potential of Fermi problems in the STEM disciplines to support the development of twenty-first century competencies]]></article-title>
<source><![CDATA[ZDM]]></source>
<year>2019</year>
<volume>51</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>979-90</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barahmeh]]></surname>
<given-names><![CDATA[H. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hamad]]></surname>
<given-names><![CDATA[A. M. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Barahmeh]]></surname>
<given-names><![CDATA[N. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Effect of Fermi Questions in the Development of Science Processes Skills in Physics among Jordanian Ninth Graders]]></article-title>
<source><![CDATA[Journal of Education and Practice]]></source>
<year>2017</year>
<volume>8</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>186-94</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blum]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[S. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Quality teaching of mathematical modelling: What do we know, what can we do?]]></source>
<year>2015</year>
<conf-name><![CDATA[ 12international congress on mathematical education: Intellectual and attitudinal changes]]></conf-name>
<conf-loc> </conf-loc>
<page-range>73-96</page-range><publisher-name><![CDATA[Springer International Publishing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blomberg]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Informal Statistical Inference in modelling situations - A study of developing a framework for analysing how students express inferences]]></source>
<year>2015</year>
<publisher-name><![CDATA[Linnaeus University, Departments of the Faculty of Technology]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carlson]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fermi problems on gasoline consumption]]></article-title>
<source><![CDATA[The Physics Teacher]]></source>
<year>1997</year>
<volume>35</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>308-9</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Czocher]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Introducing Modeling Transition Diagrams as a tool to connect mathematical modeling to mathematical thinking]]></article-title>
<source><![CDATA[Mathematical Thinking and Learning]]></source>
<year>2016</year>
<volume>18</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>77-106</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Efthimiou]]></surname>
<given-names><![CDATA[C. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Llewellyn]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cinema, Fermi problems and general education]]></article-title>
<source><![CDATA[Physics Education]]></source>
<year>2007</year>
<volume>42</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>253</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferrando]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Students from grade 2 to grade 10 solving a Fermi problem: analysis of emerging models]]></article-title>
<source><![CDATA[Mathematics Education Research Journal]]></source>
<year>2021</year>
<volume>33</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>61-78</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferrando]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Gallart]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Raffi]]></surname>
<given-names><![CDATA[L. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gorgorió]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Análisis de los modelos matemáticos producidos durante la resolución de problemas de Fermi]]></article-title>
<source><![CDATA[Bolema: Boletim de Educação Matemática]]></source>
<year>2017</year>
<volume>31</volume>
<numero>57</numero>
<issue>57</issue>
<page-range>220-42</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gallart]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrando]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Raffi]]></surname>
<given-names><![CDATA[L. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Albarracín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Gorgorió]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Design and implementation of a tool for analysing student products when they solve fermi problems]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Stillman]]></surname>
<given-names><![CDATA[G. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Blum]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Kaiser]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mathematical Modelling and Applications. Crossing and Researching Boundaries in Mathematics Education]]></source>
<year>2017</year>
<page-range>265-75</page-range><publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Navarro]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Problemas de Fermi. Suposición, estimación y aproximación]]></article-title>
<source><![CDATA[Epsilon]]></source>
<year>2013</year>
<numero>84</numero>
<issue>84</issue>
<page-range>57-68</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hogan]]></surname>
<given-names><![CDATA[T. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Brezinski]]></surname>
<given-names><![CDATA[K. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quantitative estimation: One, two, or three abilities?]]></article-title>
<source><![CDATA[Mathematical Thinking and Learning]]></source>
<year>2003</year>
<volume>5</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>259-80</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haberzettl]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Klett]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Schukajlow]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mathematik rund um die Schule-Modellieren mit Fermi-Aufgaben]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Eilerts]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Skutella]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Neue Materialien für einen realitätsbezogenen Mathematikunterricht]]></source>
<year>2018</year>
<numero>5</numero>
<issue>5</issue>
<page-range>31-41</page-range><publisher-name><![CDATA[Springer Spektrum]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaiser]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Sriraman]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A global survey of international perspectives on modelling in mathematics education]]></article-title>
<source><![CDATA[ZDM]]></source>
<year>2006</year>
<volume>38</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>302-10</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lesh]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Harel]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Problem solving, modeling, and local conceptual development]]></article-title>
<source><![CDATA[Mathematical Thinking and Learning]]></source>
<year>2003</year>
<volume>5</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>157-89</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Montejo-Gámez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Ahumada]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Adamuz-Povedano]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Tool for the Analysis and Characterization of School Mathematical Models]]></article-title>
<source><![CDATA[Mathematics]]></source>
<year>2021</year>
<volume>9</volume>
<numero>13</numero>
<issue>13</issue>
<page-range>1569</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peter-Koop]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Teaching and Understanding Mathematical Modelling through Fermi-Problems]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Clarke]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Grevholm]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Millman]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Tasks in primary mathematics teacher education]]></source>
<year>2009</year>
<page-range>131-46</page-range><publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pólya]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[How to solve it]]></source>
<year>1945</year>
<publisher-name><![CDATA[University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Phillips]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Milo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A feeling for the numbers in biology]]></article-title>
<source><![CDATA[Proceedings of the National Academy of Sciences]]></source>
<year>2009</year>
<volume>106</volume>
<numero>51</numero>
<issue>51</issue>
<page-range>21465-71</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Raviv]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Harris]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Dezotti]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estimation as an essential skill in entrepreneurial thinking]]></source>
<year>2016</year>
<conf-name><![CDATA[ 123ASEE Annual Conference and Exposition]]></conf-name>
<conf-loc> </conf-loc>
<publisher-name><![CDATA[American Society for Engineering Education]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[A. W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Don&#8217;t just stand there-teach Fermi problems!]]></article-title>
<source><![CDATA[Physics Education]]></source>
<year>2008</year>
<volume>43</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>83-7</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schoenfeld]]></surname>
<given-names><![CDATA[A. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Learning to think mathematically: Problem solving, metacognition, and sense-making in mathematics]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Grouws]]></surname>
<given-names><![CDATA[D. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Handbook of research on mathematics teaching and learning]]></source>
<year>1992</year>
<page-range>334-70</page-range><publisher-name><![CDATA[Macmillan Publishing Company]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shakerin]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The art of estimation]]></article-title>
<source><![CDATA[International Journal of Engineering Education]]></source>
<year>2006</year>
<volume>22</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>273-8</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Siegel]]></surname>
<given-names><![CDATA[A. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Goldsmith]]></surname>
<given-names><![CDATA[L. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Madson]]></surname>
<given-names><![CDATA[C. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Skill in estimation problems of extent and numerosity]]></article-title>
<source><![CDATA[Journal for Research in Mathematics Education]]></source>
<year>1982</year>
<volume>13</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>211-32</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sriraman]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Lesh]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modeling conceptions revisited]]></article-title>
<source><![CDATA[ZDM]]></source>
<year>2006</year>
<volume>38</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>247-54</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sriraman]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Knott]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Mathematics of Estimation: Possibilities for Interdisciplinary Pedagogy and Social Consciousness]]></article-title>
<source><![CDATA[Interchange]]></source>
<year>2009</year>
<volume>40</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>205-23</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stillman]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Applying metacognitive knowledge and strategies in applications and modelling tasks at secondary school]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Kaiser]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Blum]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Borrromeo Ferri]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Stillman]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Trends in teaching and learning of mathematical modelling]]></source>
<year>2011</year>
<page-range>165-80</page-range><publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Weinstein]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Adam]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Guesstimation: Solving the world&#8217;s problems on the back of a cocktail napkin]]></source>
<year>2009</year>
<publisher-name><![CDATA[Princeton University Press]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
