Chapter 6Chapter 6
Digital Technologies Digital Technologies in the Classroomin the Classroom
Digital Technologies Digital Technologies in the Classroomin the Classroom
Teaching and Learning Teaching and Learning with Technologywith Technology
Input Devices in the Classroom
ScannersConvert printed copy or images
into a digital versionWith optical character recognition (OCR)
software, scanned text can be saved as a word processing file
Flatbed scanners may scan one page or multiple pages and can scan from a book
The higher the resolution or dots per inch (dpi), the larger the file
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Digital CamerasCapture images to storage mediaThe higher the resolution, the sharper the
picture, but also the larger the file sizeSeveral media used: CompactFlash,
Secure Digital, xD Picture, Memory Stick, MicroDrive, SmartMedia, even CD/DVDs
Many cameras also record video
Input Devices in the Classroom
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Sony Cybershot used by
permission of Sony Electronics,
Inc; Olympus with LCD used
by Permission of Olympus
America, Inc.
Input Devices in the Classroom
Digital Cameras (cont.)Can download images to computer to
view, edit, and use with other programsMost have with LCD screens to view
images before and after you take picturesDigital photos can be used in many
software programs or can be printedWebcam – another type of digital camera
attached to or built into a computer
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Input Devices in the Classroom
Graphics (or Digital) TabletsStylus used to draw on electronic padPressure of the stylus on the pad is
converted to images or commandsAllows more precise control than mouse,
can be used for creating art workUsed to create original images or enhance
or annotate
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Input Devices in the Classroom
Sound Input DevicesMicrophone (mic) built in most PCsExternal mic may also plug into PCUsed to save interviews, add commentary,
or record music to enhance computer presentation or tutorial
Recordings can support auditory learnersSound files tend to be large
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Input Devices in the Classroom
Pen Input DevicesUsed with Personal digital assistants
(PDAs) Tablet PCsStylus pressed against screenRecords commands or handwritingCan be converted to word processed file
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Input Devices in the Classroom
Tablet PCsIn essence, a notebook PC with input
functionality like a PDAPortable, convenient, and lightweightConverts handwriting into a word
processing file Drawings saved as graphics files.Often offer wireless access to networks
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Input Devices in the Classroom
Touch ScreensComputer monitor screen responds to
touchTouch icons or menu items rather than use
mouseBest at receiving commands and selectionsUseful assistive device for students who are
preliterate and/or have limited motor skills
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Input Devices in the Classroom
Electronic WhiteboardsDry erase markers can be used to write or
drawCaptures writing or drawing and saves as
digital fileFiles can be printed or shared electronicallyPortable devices can convert regular
whiteboard into an electronic whiteboard.
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Output Devices in the Classroom
Data/video projectors Connect to computer to display large image Most common technology: LCD, LED, or DLPDisplays computer and video imagesUsually has remote control, multiple inputs,
and speakersBecoming smaller and cheaper
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Output Devices in the Classroom
Scan ConverterConverts digital computer signal for display
on analog TVVery inexpensive compared to other digital
display devicesResolution limited to that of TV’s display
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Output Devices in the Classroom
Speakers and HeadphonesSmall speakers plug into PC, play audio
or sound associated with softwareHeadphones can be plugged into the
same port or one on a sound cardTo accommodate multiple headphones, a
splitter can be used
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Emerging Technologies
WirelessWireless fidelity (WiFi) uses very fast radio
frequency (RF) connectionsConnects computers and handheld devicesUse spreading quickly, becoming more common
than hard-wired computersWireless networks eliminate cost of retrofitting
schools for network cablesWireless networks improve flexibility with
physical location and arrangement
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Emerging Technologies
PDAs, Smartphones, and NetbooksOnce rapidly growing, PDA capabilities now being
found in smartphonesSmartphones offer capabilities until recently found
only in computersAlthough they have much potential, smartphones,
which are cell phones, have not integrated well into schools
Netbooks have become very popular with students and travelers
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Emerging Technologies
E-booksDisplays electronic multimedia version of
a bookMay enable note taking and/or other
featuresCan store many books Can also read books aloudDevices available from Kindle, Sony, Apple,
and others
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Emerging Technologies
Voice-Activated Devices/SoftwareLets you communicate/issue commands
with a computer via your voiceCan eliminate need for typing or clickingWidely used as assistive deviceCan make computing more flexible,
including freeing users from keyboard or mouse
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Emerging Technologies
USB DrivesAlso called jump, flash, or keychain drivesSmall, lightweight devices with large storage
capacityMemory card-like storage (no moving parts)Use erasable and reprogrammable chip
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Computers in the Classroom
Computer hardware makes it possible to enhance teaching and learning
Computer software focuses hardware on classroom-specific teaching and learning tasks
Teachers should review and evaluate both hardware and software carefully to ensure selection of the best support tools
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