Can someone explain to me in easier terms how websites are developed, I just started an A+ class and I've been asked to do a presentation on that... please help...

Please review the guidelines on asking for help with homework that can be found here:

https://www.askmehelpdesk.com/arts-literature/announcement-u-b-read-first-expectations-homework-help-board-b-u.html

You need to define the question better. WEBsites are developed in a number of different ways depending on the nature of the site.