Chapter 4:Digital Technologies in the Classroom

Rebekah Lemus, Alan Fox, and Becca Pester

Before Digital

Dittograph Machine– Black and blue transfer paper– Limited copies– No mistakes

Personal Computer

Finished product viewed on screen Correction able Fonts and graphics were alterable Printing

– Multiple copies made easy– Color prints– Transparencies– Graphics

Input Devices

Keyboard and mouse Scanner Digital cameras Digital tablets Sound input Pen input Touch screen devices Input via voice Electronic whiteboards

Keyboard and mouse

Scanner

Flatbed scanner– Recognizes printed characters

OCR Software– Resolution: DPI (Dots per Inch)

Ports– USB (Universal Serial Bus)– USB expansion hub

Digital Camera

No light sensitive film Save on memory card, disk, or CD

– 8 megabyte memory card holds approximately 30 medium-resolution images

Transfer images to computer for storage– Via cable and port

Viewing and Printing– View before pictures are taken and after– Delete to save memory space– Print on photography paper or regular paper

Web-cam

Mounted on monitor Connected via USB port to computer Microphone, still, video, and audio capabilities via

the Internet Classroom usage

– Take pictures of student work– Customize class website– Record field trip– Document science experiment

Graphic Tablets

“Digitizers” Pen shaped device Electronic pressure-sensitive pad

– Circuits completed Classroom uses

– Diagrams– Artwork– Alter digital images on screen– During presentation circle key ideas/words– Annotate scanned images

Sound Input Devices

Small speakers and personal microphone Via ports Music, sound, spoken word digitized and

stored– Special effects added, sped up or slowed down

Output sound through speakers

Personal Digital Assistant (PDA)

Touch Screen Divices

Input via Voice

Electronic Whiteboards

Activity: Portraits

Pass the digital camera, taking a picture of the person that passed it to you

Once the digital pictures are uploaded into the computer, retrieve your own picture from the collaborative file called “portraits”

Open your picture with Photoshop and alter it three different ways

Save your new portrait to the collaborative folder as “[Your Name]”

Sign your name on your picture using the graphic tablet Use these pictures during the slide show to familiarize

yourself with all the students in the class