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Bibliographic Details
Main Author:	Juan Jesús Ortiz de Haro
Format:	Artículo científico
Language:	es
Published:	Sociedad Mexicana de Investigación y Divulgación de la Educación Matemática A. C. 2011
Subjects:	Educación Media aritmética educación estadística comprensión matemática formación de profesores significado personal de un objeto matemático
Online Access:	https://www.redalyc.org/articulo.oa?id=40521146005
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Significados personales de los futuros profesores de educación primaria sobre la media aritmética Juan Jesús Ortiz de Haro Vicenç Font Moll Educación Media aritmética educación estadística comprensión matemática formación de profesores significado personal de un objeto matemático Un cambio efectivo de la enseñanza de la estadística, tal y como proponen los actuales currículos, requiere mejorar la formación de los profesores que han de enseñarla. El objetivo principal de esta investigación es determinar el significado personal declarado del objeto matemático "media aritmética" de un grupo de futuros profesores de Educación Primaria. La herramienta configuración cognitiva, propuesta por el Enfoque Ontosemiótico de la Cognición e Instrucción Matemática, ha permitido poner de manifiesto la gran variedad de tipologías de significados y mostrar que existen importantes dificultades relacionadas con la comprensión del concepto y algunas de sus propiedades. Se finaliza con algunas implicaciones educativas para la formación de profesores en el campo de la estadística. 2011 artículo científico 0187-8298 https://www.redalyc.org/articulo.oa?id=40521146005 es http://www.redalyc.org/revista.oa?id=405 Educación Matemática application/pdf Sociedad Mexicana de Investigación y Divulgación de la Educación Matemática A. C. Educación Matemática (México) Num.2 Vol.23

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// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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