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Digital Technologies in the Classroom

This chapter explores various digital technologies for classroom use, including input devices like scanners and digital cameras, as well as output devices such as data projection units and speakers. Emerging technologies such as wireless devices, handheld computers, e-books, voice-activated devices, and portable storage are also discussed. Learn how these tools can enhance teaching and learning in the classroom setting.

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Digital Technologies in the Classroom

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  1. Digital Technologiesin the Classroom Chapter 4 Teaching and Learning With Technology 3e

  2. Chapter Focus Chapter Four examines some of the most useful and innovative digital technologies (hardware) for classroom use. • Input devices • Output devices • Emerging digital technologies • Computer system enhancements • Virtual environments

  3. Input Devices:Scanners • Capture and translate hard copy into digital data • OCR (optical character recognition) software • Recognizes text and turns it into word-processed form • Flat-bed scanner is the most common type • Resolution in dpi (dots per inch) • Choose scanner with highest resolution possible • Can be set to scan at a lower quality

  4. Input Devices:Scanners • Scanner connections • High-speed connections necessary • Ports (points of connection) • Older scanners may use a parallel port • New scanners use USB (universal serial bus) ports • Check connection requirements before purchasing • Resolution and software effect price

  5. Input Devices:Digital Cameras • Photos stored as digital data on memory card • Images transferred to computer • Special cable, camera cradle, media card slot • LCD screen allows preview • Image resolution in megapixels (millions of dots) • 4+ megapixels = 35 mm photos; print 8 x 10 images • 6+ megapixels = crop and enlarge without losing clarity • May include • Brief video and audio clip capabilities • Zoom capability • Price dependent upon capabilities

  6. Input Devices:Digital Cameras • Monitor-top camera (webcam) • Connected through USB cable • Capabilities may include • Built-in microphone • Still and video • Uses • Communication via Internet • Teleconferencing • Image sharing

  7. Input Devices:Graphics Tablets • Stylus on electronic pad • Draw diagrams • Create artwork • Signals translated into digital images • Also know as • Digitizers • Digital tablets • Annotate computer-generated material • When purchasing ensure compatibility

  8. Input Devices:Microphones • Multimedia computers • Play back and record sound • Show video clips • Display text and graphics • Speakers/microphone connected to ports • Ports connected to sound card • Digitized sound can be edited and enhanced • Audio files require large storage capacity

  9. Input Devices:Pen Input Devices • Types • Personal digital Assistant (PDA) • Tablet PC • Capabilities • Recognize handwritten notes • Simplified office management tools • Scaled-down productivity software • Uses • Digital memo pad • Portable “palmtop” computer

  10. Input Devices:Touch Screens • Computer monitor that responds to touch • Displays graphics or icons • Light-sensitive • Best with simple displays • Uses • Young children • Physically impaired

  11. Input DevicesElectronic Whiteboards • Whiteboard that can print and save data • Can be connected to remote locations • Can be • Touch-sensitive • Rear-projection • Projection device available for traditional whiteboards • Less expensive and space saving

  12. Output Devices:Data Projection Units • Display signals usually sent to monitor • Types • Data Projectors • Project both computer images, video and television • Need projection screen • Buy highest resolution and brightness (lumens) • Scan Converters • Digital to analog

  13. Output Devices:Speakers and Headphones • Speakers • Vary in capability • Consider how audio-rich computer will be used • Best for large-group display • Headphones • Single student use • Converter plugs may make headphones from other audio devices usable

  14. Emerging Digital Technologies:Wireless Devices • Radio frequency (RF) technology • Connect classroom workstations to network server • Access points throughout building • Adapters in workstations • WiFi (Wireless fidelity) • Base stations (access points) anywhere • Connect buildings, auditoriums, outside areas • Access online without wires

  15. Emerging Digital Technologies:Handheld Computers • Personal information management • Abbreviated software versions • Integrated into handhelds • Digital cameras • Audio and video players • Cell phones • Use for almost any task full-size can do • Possibilities expand with wireless networks

  16. Emerging Digital Technologies:E-Books • Electronic versions of books for PDAs • Single device can store and display many e-books with related materials • Allow note taking • One device with multiple texts downloaded • Update texts without expensive printing costs • Audio and visual enhancements address diverse learning styles

  17. Emerging Digital Technologies:Voice-Activated Devices • Enables computer to accept voice commands and dictation of data • Some cellular phones have this technology • Enables physically disabled or those with limited keyboarding skills to use computer • Allows hands free computer-assisted lessons

  18. Emerging Digital Technologies:Portable Storage • USB Drive • Key chain drive, jump drive, flash drive • Plugged into USB port • Recognized as external drive • Transport data from computer to computer • Possible issues • Older machines may have few or no USB ports • Ports may not be compatible

  19. Virtual Environments • Virtual reality (VR) • Hardware/software to create digital interactive environments • Hardware (headpiece/glove) • Three-dimensional digital world • Reach out and touch • Planets • Molecules • Plants in virtual Amazon • QuickTime VR

  20. From Hardware to Software • Chapter 5 • Administrative Software • Chapter 6 • Academic Software • Classroom Equipment Evaluation Rubric • Page 158 • To assist you in evaluating hardware for classroom use in areas as: Ease of use and setup, space, tutorials, etc.

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