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Bibliographic Details
Main Author:	Griffis, Joan E.
Format:	Recurso educativo Open Access
Language:	en
Published:	1979
Subjects:	Audiovisual Aids Elementary School Students Filmstrips Innovation Instructional Materials Summative Evaluation Teaching Guides
Online Access:	https://eric.ed.gov/?id=EJ212790
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_version_	1867181445318967296
author	Griffis, Joan E.
author_facet	Griffis, Joan E. Griffis, Joan E.
collection	Education Resources Information Center
contents	AV Materials: Can They Be More Creative and Innovative? Griffis, Joan E. Audiovisual Aids Elementary School Students Filmstrips Innovation Instructional Materials Summative Evaluation Teaching Guides Evaluates nonprint instructional materials produced for the elementary school market in 1978 in terms of creative and innovative qualities, and offers a critical analysis of filmstrips and kits currently available, indicating strengths and weaknesses. (FM)
format	Recurso educativo Open Access
id	eric_EJ212790
institution	ERIC Institute of Education Sciences
language	en
publishDate	1979
record_format	eric
spellingShingle	AV Materials: Can They Be More Creative and Innovative? Griffis, Joan E. Audiovisual Aids Elementary School Students Filmstrips Innovation Instructional Materials Summative Evaluation Teaching Guides AV Materials: Can They Be More Creative and Innovative? Griffis, Joan E. Audiovisual Aids Elementary School Students Filmstrips Innovation Instructional Materials Summative Evaluation Teaching Guides Evaluates nonprint instructional materials produced for the elementary school market in 1978 in terms of creative and innovative qualities, and offers a critical analysis of filmstrips and kits currently available, indicating strengths and weaknesses. (FM)
title	AV Materials: Can They Be More Creative and Innovative?
topic	Audiovisual Aids Elementary School Students Filmstrips Innovation Instructional Materials Summative Evaluation Teaching Guides
url	https://eric.ed.gov/?id=EJ212790

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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VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
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HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
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SERVER_PORT	"443"
REMOTE_ADDR	"216.73.217.169"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
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CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
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SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"46002"
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GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
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REQUEST_URI	"/Record/eric_EJ212790/Details"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1784869951.7822
REQUEST_TIME	1784869951

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Registered Handlers

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