An Introduction to Internet Resources for K-12 Educators. Part I: Information Resources, Update 2000. ERIC Digest.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Sprague, Carolyn
Format:	Recurso educativo Open Access
Language:	en
Published:	2000
Subjects:	Educational Research Educational Resources Elementary Secondary Education Information Sources Instructional Materials Internet Models Online Systems Technology Planning
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

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author	Sprague, Carolyn
author_facet	Sprague, Carolyn Sprague, Carolyn
collection	Education Resources Information Center
contents	An Introduction to Internet Resources for K-12 Educators. Part I: Information Resources, Update 2000. ERIC Digest. Sprague, Carolyn Educational Research Educational Resources Elementary Secondary Education Information Sources Instructional Materials Internet Models Online Systems Technology Planning This Digest lists a sample of no-cost Internet resources of special interest to K-12 educators. Highlights include: Guides to Internet Resources; Lesson Plans and Teaching Materials; Keypals and Penpals; Acceptable Use Policies; Technology Plans for K-12 Schools; Internet Projects for the Classroom; Grant Information; E-Rate Information; Federal Government Information; State Education Departments; Standards-Based Education; Reference Resources; Library Catalogs; Kids Resources; and Other Resources. (AEF)
format	Recurso educativo Open Access
id	eric_ED444602
institution	ERIC Institute of Education Sciences
language	en
publishDate	2000
record_format	eric
spellingShingle	An Introduction to Internet Resources for K-12 Educators. Part I: Information Resources, Update 2000. ERIC Digest. Sprague, Carolyn Educational Research Educational Resources Elementary Secondary Education Information Sources Instructional Materials Internet Models Online Systems Technology Planning An Introduction to Internet Resources for K-12 Educators. Part I: Information Resources, Update 2000. ERIC Digest. Sprague, Carolyn Educational Research Educational Resources Elementary Secondary Education Information Sources Instructional Materials Internet Models Online Systems Technology Planning This Digest lists a sample of no-cost Internet resources of special interest to K-12 educators. Highlights include: Guides to Internet Resources; Lesson Plans and Teaching Materials; Keypals and Penpals; Acceptable Use Policies; Technology Plans for K-12 Schools; Internet Projects for the Classroom; Grant Information; E-Rate Information; Federal Government Information; State Education Departments; Standards-Based Education; Reference Resources; Library Catalogs; Kids Resources; and Other Resources. (AEF)
title	An Introduction to Internet Resources for K-12 Educators. Part I: Information Resources, Update 2000. ERIC Digest.
topic	Educational Research Educational Resources Elementary Secondary Education Information Sources Instructional Materials Internet Models Online Systems Technology Planning
url	https://eric.ed.gov/?id=ED444602

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// 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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Environment & details:

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HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
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REQUEST_URI	"/Record/eric_ED444602/Details"
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