Students who are mathematically inclined can use the student version of a program like MatLab or Mathematica to convert a digital image into numbers, then perform operations such as sharpening or special effects. This is a great way to...

In this project you'll learn about how digital image files are encoded, and compressed. You will also measure the quality of compressed and uncompressed images, which will give you important insights into the tradeoffs between file size...

In this project you'll learn about how digital image files are encoded, and how digital images can be compressed so that the files take up less storage space and can be transmitted more quickly. You will also measure the quality of...

Compare the strengths and weaknesses of different digital image formats. How does the amount of compression affect a JPEG image? What happens when you save a JPEG image multiple times?

Do you have a favorite picture? When you have a photo that you treasure, you want it to look as good as possible. Find out how the resolution of a digital photo effects the way it looks when you print it out. How does the quality of the...

If you sit under a leafy tree on a sunny day, you may notice spots of sunlight on the ground from light passing through spaces between the leaves. Try putting a piece of cardboard on the ground and examining the spots of light on the...

With the documents and images contained in this Doc Box, students can inquire, investigate and create documentaries exploring expansion and the impact on Native Americans. With the detailed documents describing the general view of Native...

This article discusses the importance of images for enhancing comprehension online and how to use them to communicate effectively. The article looks at illustrations, maps, animations, icons, color and contrast, image enlargement, and...

Your digital photo comprises a certain number of dots in the x and y directions. What happens to the print image quality as you "stretch" those dots out to larger and larger pictures? (Note: This experiment studies the dots per inch in...

A collection of primary source materials presented on a timeline that showcase illuminated manuscripts from 764 to 1889 that are in European museums and libraries. Click on an image to go to a page with descriptive information about each...

Images of American buildings, including houses, churches, and public buildings from the seventeenth century through the twenthieth century taken by Dr. Jeffery Howe, a professor at Boston College. The table of contents groups images by...

A collection of digitized images that reflect the time and life on the Erie Canal.

Students will be given a list of symbols from the novel and then be asked to photograph images they think represent those symbols.

In the lesson, students will create and use a pinhole camera to take a picture and then develop the negative in a darkroom. They will use photo software to change their negative image into a positive one.

The most difficult task confronting many Southerners during Reconstruction was devising a new system of labor to replace the shattered world of slavery. Learn how plantation owners and freed slaves adapted to this massive shift in the...

The Alberta Airphoto Collection consists of around 30,000 public domain images from the University of Calgary Library's collection of airphotos. The images cover urban areas at various scales and years between 1924 and 1952. These...

Technology is incorporated into this "riddle" lesson as students select an image to capture using a digital camera. This is a fun lesson designed to introduce students to the use of digital cameras. After editing the picture, they...

What is it that famous photographers do to make their images so pleasing to the eye? Find out if simple rules of geometry and symmetry can make you a better photographer.

Great techniques for fixing a wide range of common photo image problems with Photoshop tools.

Anyone with a digital camera, photo-editing software, and a pair of floppy 3-D glasses can make 3-D pictures out of their photographs by following these instructions.

A video camera records 30 "frames" or distinct images per second. (That's for an NTSC camera in the U.S. PAL cameras in other areas of the world take 25 frames per second.) You can use this fact to time events and measure velocity. One...

This is both a hands-on and technology based lesson where students can apply their knowledge of letter/sound relationships while incorporating the use of classroom technology. This Language Arts activity will allow for the students to...

An article about using abstract shapes and positions of images to create interesting effects. Includes a tutorial.

This set of sources focuses on a selection of events, legislation, and perspectives from both sides during this time period. The documents, images, and artifacts help the student-historian understand the process of going from loyal...