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aaUEN Professional Development
Digital Cameras in the Classroom
Utah Education Network - http://www.uen.org
Lee Baker
(801) 585-7905
aaUEN Professional Development
Why Go Digital? Resource from - http://www.shortcourses.com/
Saves you money by not buying rolls and rolls of film and paying
for development.
Saves you time you don't have to make two trips to the store to
drop off and then pick up.
Instantly see your pictures No more disappointments a day or two later
when your film is developed.
aaUEN Professional Development
View images before they are printed if you don't like what you see, edit them to
perfection or delete them.
Doesn't use the toxic chemicals that often end up flowing down the drain and into
our streams, rivers, and lakes.
No more waiting to finish a roll before having it processed. (Or
wasting unexposed film when you can't wait.)
Why Go Digital? Resource from - http://www.shortcourses.com/
aaUEN Professional Development
Digital Cameras in School
Supplement Curriculum Add to or supplement Fieldtrips
Go on an electronic field trip - show photos of a distant site. Highlight fieldtrip spots not to miss ahead of time. Review field trips with pictures to show all students the
sights, discuss learning, share with other groups. Create assignments with pictures and processes.
For example: lab equipment, measurements, instruments, pictures for vocabulary or reading lessons.
Use with lenses or other optics to make images available to the entire class. For examples microscopes, telescopes, etc.
aaUEN Professional Development
Digital Cameras in School
Student Projects Enhance student project with images.
Reports, science projects, multimedia shows, etc. Write stories or poems to go a long with pictures. Pictures that Reinforce of real world examples.
Angle on a house, shapes etc. Capture and identify species
Find species located close to home or school Create a local history of sites in their city. Create a time lapse presentation
Bean sprout or caterpillar transformation.
aaUEN Professional Development
Digital Cameras in School
Assessment Digital images can enhance a student portfolio.
Both electronic and paper based
Use digital images to enhance tests and other assessment methods.
aaUEN Professional Development
Digital Cameras in School
Support Take pictures of students and create a Student
information file. Create a photo inventory of school property for
property records. Create posters or multimedia displays
of student activities and work for open house, awards night, fair displays etc.
Take pictures for school newspapers yearbook. Customize your displays and bulletin boards
Use photos from your school, lab, classroom, or images of student performances.
aaUEN Professional Development
Classroom Examples:
Summer Learning High Adventure Projects
Why Cells Work - Power Point
Surweb - Egg Embryology and Production
Surweb - Box Elder, Scenic Attractions, Bear River Migratory Bird Refuge
The Powerful Math Curse of Room 30
The Butterfly and Hummingbird Garden at Longfellow School
aaUEN Professional Development
Digital Image Basics
Digital Photos/Bitmap Image digital images are made up of tiny
squares called Pixels.
aaUEN Professional Development
Digital Image Basics Cont.
Quality and Size of Image Depends on the amount of pixels used to create
the image. Referred to resolution
300 dpi same as 1inch = 300 pixels (when printing the image) When you reduce the size of an image you
reduce the number of pixels. When you image is enlarged you computer adds
pixels. This can result in your picture looking pixilated.
aaUEN Professional Development
Digital Image Basics Cont.
Print v.s. Computer Screen If Printing the picture the more pixels the better.
Generally you want at between 150-300 dpi. If using the picture on a computer screen you
want it to fit on the monitor without scrolling. Common computer resolution is 800 pixels by 600 pixels. If you image is bigger that that reduce the image size.
Using your image on the web. The less pixels the quicker the download.
aaUEN Professional Development
3 Steps to Digital Photography:
Input Digital Camera, Scanning, Digital Video
Image Processing Edit or manipulate the image with image editing software
Output Display, distribute or storage of images. For example
printing, email, insert in to documents, store for later.
INPUT IMAGE PROCESSING OUTPUT
aaUEN Professional Development
How the Digital Camera Works:
Image Sensor Instead of film the digital
camera uses an image sensor, usually a CCD or Charge-Couple Device.
The image sensor is made up of thousands to millions of pixels that record you image.
aaUEN Professional Development
Exposure When you press the shutter button on the
camera, light comes through the lens and each pixel records the brightness of light that falls on it. The more light that hits the pixel the brighter value the pixel records.
Once the brightness value is recorded it is converted to a digital number and saved on the memory of the camera. The digital number allows the image to be reconstructed on screen or in a print.
How the Digital Camera Works:
aaUEN Professional Development
Photo Color The original image is only
recorded as black and white (using brightness).
To add color Red, Green, and Blue filters are placed over the image sensor to create a color photo.
How the Digital Camera Works:
aaUEN Professional Development
Types of Digital Cameras:
Point and Shoot The least expensive digital
cameras below $300. Fully automatic and little
creative control-that's why they are called "point and shoot."
Because of the low resolution of many of these cameras, printed output is limited to about 4 x 6 inches or so.
The images are ideal for Web pages, e-mail attachments, and small reproduction sizes in newsletters and other documents.
aaUEN Professional Development
Types of Digital Cameras:
Multi-Megapixel Camera Quickly becoming the most
common digital camera sold. Over a million pixels in
their image sensors. Cost between $300-$1000 depending on the
amount of mega pixels. Give some creative controls. Appeals to serious photographers who like to have
creative control of their camera's settings and make prints up to about 8 x 10 in size.
aaUEN Professional Development
Types of Digital Cameras:Professional Cameras 35mm or APS SLR cameras
that have been adapted to digital photography
Cost from $3000 to $20,000 and more. These cameras often use 3 image sensors, one for
each color so they capture great color and resolution. At least 2-million pixels in their image sensors and
usually many more. One huge advantage is that most of the features (and
accessories designed for the film versions also work with the digital versions.
aaUEN Professional Development
Camera Elements:Image Sensor - Resolution The number of pixel on an image sensor.
Lower resolutions such as 640 x 480 are perfect for web publishing, e-mail attachments, small prints, or images in documents and presentations.
Higher resolutions, over 1 million pixels, are best for printing photo-realistic enlargements larger than 5" x 7".
Optical v.s. Interpolated Resolution The optical resolution of a camera is the number of pixels
on an image sensor that can be counted.
Interpolated resolution, adds pixels to the image to increase the total number of pixels.
aaUEN Professional Development
Aspect Ratio Image sensors have different aspect ratios-the
ratio of image height to width. The aspect ratio determines the shape and
proportions of the photographs you create. To calculate the aspect ratio of any camera, divide
the largest number in its resolution by the smallest number.
Sensitivity An ISO is the speed, or sensitivity to light. The
higher the number the "faster" or more sensitive the sensor is to light.
Camera Elements:
aaUEN Professional Development
Image Compression Image Compression makes large image files
smaller, most cameras store images in a format called JPEG. This file format not only compresses images, it also allows you to specify how much they are compressed. Less compression gives you better images so you can
make larger prints, but you can't store as many images.
More compression lets you store more images and makes the images better for posting on a Web page or sending as an e-mail attachment. The only problem is that your prints won't be as good.
Camera Elements:
aaUEN Professional Development
Frame Rate There are two delays built into digital cameras that
affect your ability to respond to fast action when taking pictures. 1 or 2 second refresh rate delay between pressing the
shutter button and actually capturing the image. This occurs as the camera clears the image sensor, and set the correct controls.
The recycle time, occurs when the captured image is processed and stored. This delay can range from a few seconds to half a minute.
Camera Elements:
aaUEN Professional Development
Image Storage Fixed v.s. Removable Storage The two most common types of removable
storage are Flash Memory Cards and Magnetic disks.
The number of images that can be stored depends on the following: Capacity of the storage devise Resolution of the images taken The amount an type of compression
Camera Elements:
aaUEN Professional Development
Top 10 Techniques for Better Photos - Kodak
Power Point Resource Gathered From Kodak.com
aaUEN Professional Development
References
Short Courses -THE Digital Photography Resource
Kodak Top 10 Techniques – A Guide to Better Pictures
Digital Cameras in Education Tech4learning – Teaching with Digital Cameras Teacher to Teacher – Ideas for using digital
camera’s in the classroom
aaUEN Professional Development
Class Project
Class Project End Product Power Point Surweb Show UEN Virtual Tour Web Photo Album (Dreamweaver)
Story Board Project Topic Sequence
aaUEN Professional Development
Places to Go:University Campus (Walking Tour)
Architecture, Plants, Sculptures, Geology
Utah Museum of Fine Arts Free Admission / Only open until 5:00 p.m. No Flash Photography
Utah Museum of Natural History $6.00 Admission / Only open until 5:30 p.m. No Flash Photography
Red Butte Garden $5.00 Admission / Only open until 5:00 p.m.
Marriott Library A Century of Skiing Exhibit
Fort Douglas/Olympic Village