Question:

my assignment is to build the a page which dynamically changes not going to separate page…

for example like this http://drupalmodules.com/ when u press on one of the related modules all the contents are changed accordingly on the same page..

panels is one thing but  i don know much.
can any one explain the processs how it is done…..

Solution:

To be clear: The page you originally linked to with the related modules…

The module being used to display the “related modules” is called Related Links (http://drupal.org/project/relatedlinks). When a related module is selected, the page is not reloading the data dynamically with javascript, it’s directing you to a new node. The related links are simply content that is being loaded that is specifically associated with the node you’re currently viewing. As the module page suggests, there are three primary ways of implementing the related links.

From http://drupal.org/project/relatedlinks:
“* Parsed links: links that are retrieved from the body of a node.
* Manual links: links that are added manually.
* Discovered links: links that are discovered by the module using various criteria, including the category terms of a node and suggestions provided by the search module (when enabled).
”
The first and third items are what will most likely be of the most use to you. The third is the most manageable (IMO), as you can set up taxonomy in a relevant way and have each node grab a number of related nodes from a specific term.