The idea is to create a web page that displays a bunch of small images ("thumbnails") in one frame and the full size version of one of the images in another frame. If you need help getting started - here is a more detailed description of what you need to do:
Collect some images (at least 5). You can right-click on any image you can see in a browser (from anywhere on the web) and select "save-as" to save the file on your computer. I'd suggest that you create a folder to hold the images and the HTML files you will need for this exxercise...
Create a web page that displays these images as "thumbnails" (small images).
Turn each of the thumbnails in to a hyperlink to the image file itself (the destination of a hyperlink can be a GIF or JPG file).
Create another HTML document that defines a FRAMESET.
You want (at least) one frame for the thumbnails and another frame for
the full-size picture.
Set things up so that when you click on any thumbnail, the full size image selected shows up in the other frame.
Scream with joy, and tell the TA you need to be checked off.
You should have plenty of time to complete this in class, so try to make it look good (throw in some color, use tables to line things up nicely etc.)!