That's Infotainment!: How to Create Your Own Screencasts

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Kroski, Ellyssa
Format:	Recurso educativo Open Access
Language:	en
Published:	2009
Subjects:	Video Technology Computer Uses in Education School Libraries Library Instruction Library Services Instructional Materials Material Development
Online Access:	Acceder al recurso
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author	Kroski, Ellyssa
author_facet	Kroski, Ellyssa Kroski, Ellyssa
collection	Education Resources Information Center
contents	That's Infotainment!: How to Create Your Own Screencasts Kroski, Ellyssa Video Technology Computer Uses in Education School Libraries Library Instruction Library Services Instructional Materials Material Development Screencasts are videos that record the actions that take place on the computer screen, most often including a narrative audio track, in order to demonstrate various computer-related tasks, such as how to use a software program or navigate a certain Web site. All that is needed is a standard microphone and screen recording software, which can be downloaded for free. In this article, the author offers a few project ideas to get librarians thinking about the types of screencasts they can create today. In addition, the author outlines eight simple steps to create screencasts that can help teach students and library patrons how to search library databases, find homework help, research colleges, sign up for the summer reading program, and more. (Contains 6 online resources.)
format	Recurso educativo Open Access
id	eric_EJ832253
institution	ERIC Institute of Education Sciences
language	en
publishDate	2009
record_format	eric
spellingShingle	That's Infotainment!: How to Create Your Own Screencasts Kroski, Ellyssa Video Technology Computer Uses in Education School Libraries Library Instruction Library Services Instructional Materials Material Development That's Infotainment!: How to Create Your Own Screencasts Kroski, Ellyssa Video Technology Computer Uses in Education School Libraries Library Instruction Library Services Instructional Materials Material Development Screencasts are videos that record the actions that take place on the computer screen, most often including a narrative audio track, in order to demonstrate various computer-related tasks, such as how to use a software program or navigate a certain Web site. All that is needed is a standard microphone and screen recording software, which can be downloaded for free. In this article, the author offers a few project ideas to get librarians thinking about the types of screencasts they can create today. In addition, the author outlines eight simple steps to create screencasts that can help teach students and library patrons how to search library databases, find homework help, research colleges, sign up for the summer reading program, and more. (Contains 6 online resources.)
title	That's Infotainment!: How to Create Your Own Screencasts
topic	Video Technology Computer Uses in Education School Libraries Library Instruction Library Services Instructional Materials Material Development
url	https://eric.ed.gov/?id=EJ832253

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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