<?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>1665-6423</journal-id>
<journal-title><![CDATA[Journal of applied research and technology]]></journal-title>
<abbrev-journal-title><![CDATA[J. appl. res. technol]]></abbrev-journal-title>
<issn>1665-6423</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias Aplicadas y Tecnología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-64232003000100002</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Applying the logo environment: learning, doing and discovering through computerized learning projects]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Murray-Lasso]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de Mëxico Facultad de Ingeniería Departamento de Ingeniería de Sistemas]]></institution>
<addr-line><![CDATA[México Distrito Federal]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2003</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2003</year>
</pub-date>
<volume>1</volume>
<numero>1</numero>
<fpage>5</fpage>
<lpage>26</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-64232003000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-64232003000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-64232003000100002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this paper the Logo environment is applied to several original computerized learning projects, each of a very different nature: one for learning geometry generating numerous instances for verifying the results of a little known theorem of plane geometry, a second for learning the basics of the physical foundations of music through the construction, using the keyboard of the computer, of a little piano, and a third one to learn some aspects of Spanish grammar involving the conjugation of regular and irregular verbs. The projects were carefully selected to illustrate a wide range of possibilities and the flexibility of the Logo language and power of its instruction set and adaptive data structure. After introducing the main ideas of the Logo educational philosophy, a short introduction to the language is given followed by an introduction to the concept of a microworld. Next the idea of a computerized learning project is explained and the three projects mentioned above are presented. Complete listings of simple programs in Logo Writer are included together with some ideas for extending the projects in different directions. The projects presented in the paper are of a slightly more advanced nature than what usually appears in books on Logo. The paper is sprinkled with learning ideas that can be tried with groups of youngsters.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[En este artículo se aplica el ambiente Logo a varios proyectos computarizados de aprendizaje, cada uno de una naturaleza muy diferente: uno para aprender geometría generando casos particulares de los resultados de un teorema poco conocido de geometría plana, un segundo para aprender los fundamentos de la música a través de la construcción, utilizando el teclado de la computadora, de un pianito y un tercero para aprender algunos aspectos de la gramática española relativos a la conjugación de verbos regulares e irregulares. Se seleccionaron cuidadosamente los proyectos que se incluyen para ilustrar la gama amplia de posbilidades y la flexibilidad del lenguaje Logo, así como el poderío de su conjunto de instrucciones y de su estructura de datos adaptable. Después de introducir las principales ideas de la filosofía educativa Logo, se da una breve introducción al lenguaje seguida de una introducción al concepto de micromundo. A continuación se explica la idea de un proyecto computarizado de aprendizaje y se presentan los tres proyectos mencionados. Se incluyen listados completos de programas sencillos en Logo Writer junto con algunas ideas para extenderlos proyectos en diferentes direcciones. Los proyectos presentados en el artículo son de una naturaleza ligeramente más avanzada que la que normalmente aparece en los libros sobre Logo. El artículo está salpicado con ideas de aprendizaje que se pueden ensayar con grupos de jóvenes]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Learning environment]]></kwd>
<kwd lng="en"><![CDATA[Logo]]></kwd>
<kwd lng="en"><![CDATA[computerized learning project]]></kwd>
<kwd lng="en"><![CDATA[Logo Writer]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="center"><font face="verdana" size="4"><b>Applying the logo environment: learning, doing and discovering through computerized learning projects</b></font></p>  	    <p>&nbsp;</p>  	    <p align="center"><font face="verdana" size="2"><b>M. A. Murray&#45;Lasso</b></font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><i>Computer&#45;Aided Teaching Unit, Department of Systems Engineering, Graduate Division of the Faculty of Engineering National Autonomous University of Mexico.</i></font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2">Received: March 23<sup>th</sup> 2001.    <br> 	Accepted: January 25<sup>th</sup> 2002.</font></p>  	    <p>&nbsp;</p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><b>ABSTRACT</b></font></p>  	    <p align="justify"><font face="verdana" size="2">In this paper the Logo environment is applied to several original computerized learning projects, each of a very different nature: one for learning geometry generating numerous instances for verifying the results of a little known theorem of plane geometry, a second for learning the basics of the physical foundations of music through the construction, using the keyboard of the computer, of a little piano, and a third one to learn some aspects of Spanish grammar involving the conjugation of regular and irregular verbs. The projects were carefully selected to illustrate a wide range of possibilities and the flexibility of the Logo language and power of its instruction set and adaptive data structure. After introducing the main ideas of the Logo educational philosophy, a short introduction to the language is given followed by an introduction to the concept of a microworld. Next the idea of a computerized learning project is explained and the three projects mentioned above are presented. Complete listings of simple programs in Logo Writer are included together with some ideas for extending the projects in different directions. The projects presented in the paper are of a slightly more advanced nature than what usually appears in books on Logo. The paper is sprinkled with learning ideas that can be tried with groups of youngsters.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Learning environment, Logo, computerized learning project, Logo Writer.</font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><b>RESUMEN</b></font></p>  	    <p align="justify"><font face="verdana" size="2">En este art&iacute;culo se aplica el ambiente Logo a varios proyectos computarizados de aprendizaje, cada uno de una naturaleza muy diferente: uno para aprender geometr&iacute;a generando casos particulares de los resultados de un teorema poco conocido de geometr&iacute;a plana, un segundo para aprender los fundamentos de la m&uacute;sica a trav&eacute;s de la construcci&oacute;n, utilizando el teclado de la computadora, de un pianito y un tercero para aprender algunos aspectos de la gram&aacute;tica espa&ntilde;ola relativos a la conjugaci&oacute;n de verbos regulares e irregulares. Se seleccionaron cuidadosamente los proyectos que se incluyen para ilustrar la gama amplia de posbilidades y la flexibilidad del lenguaje Logo, as&iacute; como el poder&iacute;o de su conjunto de instrucciones y de su estructura de datos adaptable. Despu&eacute;s de introducir las principales ideas de la filosof&iacute;a educativa Logo, se da una breve introducci&oacute;n al lenguaje seguida de una introducci&oacute;n al concepto de micromundo. A continuaci&oacute;n se explica la idea de un proyecto computarizado de aprendizaje y se presentan los tres proyectos mencionados. Se incluyen listados completos de programas sencillos en Logo Writer junto con algunas ideas para extenderlos proyectos en diferentes direcciones. Los proyectos presentados en el art&iacute;culo son de una naturaleza ligeramente m&aacute;s avanzada que la que normalmente aparece en los libros sobre Logo. El art&iacute;culo est&aacute; salpicado con ideas de aprendizaje que se pueden ensayar con grupos de j&oacute;venes.</font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/jart/v1n1/v1n1a2.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><b>Reference</b></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">&#91;1&#93;&nbsp;Papert S., 1981 Mindstorms: Children, Computers, and Powerful Ideas, Basic Books, New York, 1980. There is a Spanish translation: <i>Desaf&iacute;o a la Mente: Computadoras y Educaci&oacute;n,</i> Ediciones Gal&aacute;pago, Buenos Aires.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813262&pid=S1665-6423200300010000200001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;2&#93; Fapert S. 1993, The Children's Machine: Rethinking School in the Age of the Computer, Basic Books, New York.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813264&pid=S1665-6423200300010000200002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;3&#93; Logo Computer Systems, Inc, LogoWriter: Gu&iacute;a de Referencia, Macrobit Editores, M&eacute;xico, 1990.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813266&pid=S1665-6423200300010000200003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;4&#93; Murray&#45;Lasso M. A., Introducci&oacute;n a LogoWriter: Un Lenguaje Educativo, Memoria del X Simposio Internacional de Computaci&oacute;n en la Educaci&oacute;n, Sociedad Mexicana de Computaci&oacute;n en la Educaci&oacute;n, M&eacute;xico, October 1994, pp. 41&#45;69.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813268&pid=S1665-6423200300010000200004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;5&#93; Murray&#45;Lasso M. A., Introducing Computers to Teenagers through Music The Computing Teacher: Journal of the Society for Technology in Education, February 1993, pp. 8&#45;12.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813270&pid=S1665-6423200300010000200005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">&#91;6&#93; Hoyles C. and Noss R., 1992, Learning Mathematics and Logo, MIT Press, Cambridge, MA.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813272&pid=S1665-6423200300010000200006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;7&#93; Abelson H. and diSessa A., 1981 Turtle Geometry: The Computer as a Medium for Exploring Mathematics <i>,</i> MIT Press, Cambridge, MA.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813274&pid=S1665-6423200300010000200007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;8&#93; Paradigm Software, Inc., Object Logo, Paradigm Software, Inc., Cambridge, MA, 1990.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813276&pid=S1665-6423200300010000200008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;9&#93; Murray&#45;Lasso M. A., La Ense&ntilde;anza de la Gram&aacute;tica Espa&ntilde;ola con Ayuda de la Computadora, Memorias del Segundo Seminario Internacional La Implantaci&oacute;n de la Computadora en la Educaci&oacute;n Latinoamericana, Secretar&iacute;a de Educaci&oacute;n P&uacute;blica de M&eacute;xico, M&eacute;xico, April 1991, pp. 181&#45;195.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813278&pid=S1665-6423200300010000200009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;10&#93; Alsina R., 1990, Todos los Verbos Castellanos Conjugados<i>,</i> (4<sup>a</sup>. Edici&oacute;n,) Ediciones Teide, Barcelona,    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813280&pid=S1665-6423200300010000200010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->.</font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">&#91;11&#93;&nbsp;Logo Computer Systems, Inc., Las T&eacute;cnicas Micromundos, LCSI, Montreal, 1994.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813282&pid=S1665-6423200300010000200011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;12&#93; Murray&#45;Lasso M. A., Introducing Recursion Gently through Logo, Memoria del XI Simposium Internacional de Computaci&oacute;n en la Educaci&oacute;n, SOMECE, Puebla, October 1995, pp. 358&#45;370.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813284&pid=S1665-6423200300010000200012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;13&#93; Grant C. R. y de Antueno E A., 1996 Logo Gr&aacute;fico Versi&oacute;n 4. Manual del Usuario. Descripci&oacute;n de Primitivas. Ap&eacute;ndices, Fundaustral, Buenos Aires.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813286&pid=S1665-6423200300010000200013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;14&#93; Yoder S. y Moursund D., 1996 Introduction to Microworlds: A Logo&#45;Based Hypermedia Environment, (Second Edition), International Society for Technology in Education, Eugene, OR.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813288&pid=S1665-6423200300010000200014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;15&#93; S. Papert, 1980 Commputer&#45;Based Microworlds in The Computer in the School: Tutor, Tool, Tutee, R. P. Taylor (Ed.,) Teachers College Press, New York.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813290&pid=S1665-6423200300010000200015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">&#91;16&#93; Harvey B., 1987 Computer Science Logo Style, 3 Volumes, MIT Press, Cambridge, MA, 1985, 1986.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813292&pid=S1665-6423200300010000200016&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;17&#93; Logo Foundation, 250 West 57<sup>th</sup>. Street Suite 2603, New York, NY, 10107&#45;2603, U.S.A.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813294&pid=S1665-6423200300010000200017&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;18&#93; Terrapin Software, Inc., 400 Riverside Street, Portland, ME 04103, U.S.A.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813296&pid=S1665-6423200300010000200018&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;19&#93; Murray&#45;Lasso M. A., El Proyecto Educativo Computarizado: Un Ejemplo en Logo Memoria de SOMECE '93: Simposio Internacional de Computaci&oacute;n e Educaci&oacute;n, Sociedad Mexicana de Computaci&oacute;n en la Educaci&oacute;n, Quer&eacute;taro, July 1993, pp. 101 &#45; 103.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813298&pid=S1665-6423200300010000200019&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;20&#93; International Society for Technology in Education (ISTE,) 1787 Agate Street, Eugene, OR, 97403&#45;1923.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813300&pid=S1665-6423200300010000200020&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">&#91;21&#93; Logo Exchange: Journal of the ISTE Special Interest Group for Logo&#45;Using Educators.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813302&pid=S1665-6423200300010000200021&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;22&#93; MIT Media Lab E15&#45;309, 20 Ames Street, Cambridge, MA 02139, U.S.A.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813304&pid=S1665-6423200300010000200022&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;23&#93; Logo Computer Systems, Inc. (LCSI,) 3300 Cote Vertu, Suite 201, Montreal, Quebec H4R 2B7, CANADA.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813306&pid=S1665-6423200300010000200023&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;24&#93; Murray&#45;Walpole G., Murray&#45;Lasso M. A., y Murray&#45;Walpole V., C&oacute;mo Ejecutar M&uacute;sica Cl&aacute;sica por Computadora sin Previo Entrenamiento, Memoria del Tercer Simposio Internacional La Computaci&oacute;n y la Educaci&oacute;n Infantil y Juvenil, Academia de la Investigaci&oacute;n Cient&iacute;fica, Puebla, October 1986, pp. 34.1 &#45; 34.11.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813308&pid=S1665-6423200300010000200024&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;25&#93; de Antueno E A., Naveira A. M. y Thompson H. H., 1984 Computaci&oacute;n en el Colegio &#45; LOGO: Espejo de la Mente, Editorial Inform&aacute;tica Educativa, Buenos Aires.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813310&pid=S1665-6423200300010000200025&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">&#91;26&#93; Fundaustral, F. L. Beltr&aacute;n 267 &#45; 1406 Buenos Aires, Argentina.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813312&pid=S1665-6423200300010000200026&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;27&#93; Polya G., 1981 Mathematical Discovery, Vols. I and II, (Combined Edition), John Wiley &amp; Sons, Inc., New York.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813314&pid=S1665-6423200300010000200027&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;28&#93; Murray&#45;Lasso M. A., Aplicaci&oacute;n de los N&uacute;meros Complejos en la Ense&ntilde;anza de la Geometr&iacute;a Plana Ingenier&iacute;a: Investigaci&oacute;n y Tecnolog&iacute;a, Vol. 1, No. 5, October&#45;December 2000, pp. 215&#45;223.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813316&pid=S1665-6423200300010000200028&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;29&#93; Kelly P., Von Aubel's Quadrilateral Theorem, Mathematics Magazine, January 1966, pp. 35&#45;37.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4813318&pid=S1665-6423200300010000200029&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Papert]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[1981 Mindstorms: Children, Computers, and Powerful Ideas]]></source>
<year>1980</year>
<publisher-loc><![CDATA[New YorkBuenos Aires ]]></publisher-loc>
<publisher-name><![CDATA[Basic BooksEdiciones Galápago]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fapert]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[The Children's Machine: Rethinking School in the Age of the Computer]]></source>
<year>1993</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Basic Books]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="book">
<collab>Logo Computer Systems, Inc</collab>
<source><![CDATA[LogoWriter: Guía de Referencia]]></source>
<year>1990</year>
<publisher-name><![CDATA[Macrobit Editores]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray-Lasso]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang="es"><![CDATA[Introducción a LogoWriter: Un Lenguaje Educativo]]></article-title>
<source><![CDATA[Memoria del X Simposio Internacional de Computación en la Educación]]></source>
<year>Octo</year>
<month>be</month>
<day>r </day>
<page-range>41-69</page-range><publisher-name><![CDATA[Sociedad Mexicana de Computación en la Educación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray-Lasso]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Introducing Computers to Teenagers through Music The Computing Teacher]]></article-title>
<source><![CDATA[Journal of the Society for Technology in Education]]></source>
<year>Febr</year>
<month>ua</month>
<day>ry</day>
<page-range>8-12</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hoyles]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Noss]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Learning Mathematics and Logo]]></source>
<year>1992</year>
<publisher-loc><![CDATA[Cambridge^eMA MA]]></publisher-loc>
<publisher-name><![CDATA[MIT Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abelson]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[diSessa]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Turtle Geometry: The Computer as a Medium for Exploring Mathematics]]></source>
<year>1981</year>
<publisher-loc><![CDATA[Cambridge^eMA MA]]></publisher-loc>
<publisher-name><![CDATA[MIT Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="book">
<collab>Paradigm Software, Inc.</collab>
<source><![CDATA[Object Logo]]></source>
<year>1990</year>
<publisher-loc><![CDATA[Cambridge^eMA MA]]></publisher-loc>
<publisher-name><![CDATA[Paradigm Software, Inc.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray-Lasso]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang="es"><![CDATA[La Enseñanza de la Gramática Española con Ayuda de la Computadora]]></article-title>
<source><![CDATA[Memorias del Segundo Seminario Internacional La Implantación de la Computadora en la Educación Latinoamericana]]></source>
<year>Apri</year>
<month>l </month>
<day>19</day>
<page-range>181-195</page-range><publisher-name><![CDATA[Secretaría de Educación Pública]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alsina]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Todos los Verbos Castellanos Conjugados]]></source>
<year>1990</year>
<edition>4</edition>
<publisher-loc><![CDATA[Barcelona ]]></publisher-loc>
<publisher-name><![CDATA[Ediciones Teide]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="book">
<collab>Logo Computer Systems, Inc.</collab>
<source><![CDATA[Las Técnicas Micromundos]]></source>
<year>1994</year>
<publisher-loc><![CDATA[Montreal ]]></publisher-loc>
<publisher-name><![CDATA[LCSI]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray-Lasso]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Introducing Recursion Gently through Logo]]></article-title>
<source><![CDATA[Memoria del XI Simposium Internacional de Computación en la Educación]]></source>
<year>Octo</year>
<month>be</month>
<day>r </day>
<page-range>358-370</page-range><publisher-loc><![CDATA[Puebla ]]></publisher-loc>
<publisher-name><![CDATA[SOMECE]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Grant]]></surname>
<given-names><![CDATA[C. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Antueno]]></surname>
<given-names><![CDATA[E A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Logo Gráfico Versión 4. Manual del Usuario. Descripción de Primitivas. Apéndices]]></source>
<year>1996</year>
<publisher-loc><![CDATA[Buenos Aires ]]></publisher-loc>
<publisher-name><![CDATA[Fundaustral]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yoder]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Moursund]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Introduction to Microworlds: A Logo-Based Hypermedia Environment]]></source>
<year>1996</year>
<edition>Second</edition>
<publisher-loc><![CDATA[Eugene^eOR OR]]></publisher-loc>
<publisher-name><![CDATA[International Society for Technology in Education]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Papert]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[R. P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Commputer-Based Microworlds in The Computer in the School: Tutor, Tool, Tutee]]></source>
<year>1980</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Teachers College Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Harvey]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Computer Science Logo Style]]></source>
<year>1987</year>
<month>19</month>
<day>85</day>
<publisher-loc><![CDATA[Cambridge^eMA MA]]></publisher-loc>
<publisher-name><![CDATA[MIT Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="">
<source><![CDATA[Logo Foundation]]></source>
<year></year>
<publisher-loc><![CDATA[New York^eNY NY]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="">
<source><![CDATA[Terrapin Software, Inc.]]></source>
<year></year>
<publisher-loc><![CDATA[Portland ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray-Lasso]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang="es"><![CDATA[El Proyecto Educativo Computarizado: Un Ejemplo en Logo Memoria de SOMECE '93]]></article-title>
<source><![CDATA[Simposio Internacional de Computación e Educación]]></source>
<year>July</year>
<month> 1</month>
<day>99</day>
<page-range>101 - 103</page-range><publisher-loc><![CDATA[Querétaro ]]></publisher-loc>
<publisher-name><![CDATA[Sociedad Mexicana de Computación en la Educación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="">
<source><![CDATA[International Society for Technology in Education]]></source>
<year>1923</year>
<publisher-loc><![CDATA[Eugene^eOR OR]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="">
<source><![CDATA[Logo Exchange: Journal of the ISTE Special Interest Group for Logo-Using Educators]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="">
<source><![CDATA[MIT Media Lab E15-309]]></source>
<year></year>
<publisher-loc><![CDATA[Cambridge^eMA MA]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="">
<source><![CDATA[Logo Computer Systems, Inc.]]></source>
<year></year>
<publisher-loc><![CDATA[Montreal^eQuebec Quebec]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray-Walpole]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Murray-Lasso]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Murray-Walpole]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang="es"><![CDATA[Cómo Ejecutar Música Clásica por Computadora sin Previo Entrenamiento]]></article-title>
<source><![CDATA[Memoria del Tercer Simposio Internacional La Computación y la Educación Infantil y Juvenil]]></source>
<year>Octo</year>
<month>be</month>
<day>r </day>
<page-range>34.1 - 34.11</page-range><publisher-loc><![CDATA[Puebla ]]></publisher-loc>
<publisher-name><![CDATA[Academia de la Investigación Científica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[de Antueno]]></surname>
<given-names><![CDATA[E A.]]></given-names>
</name>
<name>
<surname><![CDATA[Naveira]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Thompson]]></surname>
<given-names><![CDATA[H. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Computación en el Colegio - LOGO: Espejo de la Mente]]></source>
<year>1984</year>
<publisher-loc><![CDATA[Buenos Aires ]]></publisher-loc>
<publisher-name><![CDATA[Editorial Informática Educativa]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="">
<source><![CDATA[Fundaustral]]></source>
<year></year>
<publisher-loc><![CDATA[Buenos Aires ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Polya]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mathematical Discovery]]></source>
<year>1981</year>
<volume>I</volume><volume>II</volume>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley & Sons, Inc.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray-Lasso]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang="es"><![CDATA[Aplicación de los Números Complejos en la Enseñanza de la Geometría Plana Ingeniería]]></article-title>
<source><![CDATA[Investigación y Tecnología]]></source>
<year>Octo</year>
<month>be</month>
<day>r-</day>
<volume>1</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>215-223</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kelly]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Von Aubel's Quadrilateral Theorem]]></article-title>
<source><![CDATA[Mathematics Magazine]]></source>
<year>Janu</year>
<month>ar</month>
<day>y </day>
<page-range>35-37</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
