One way of using technology in the classroom is by showing videos that the students find interesting that still teach them about math. Many videos can be found on YOUtube, which is a site most students are familiar with. You can also have students find videos on YOUtube or in some cases even create and post an educational video to YOUtube. This is a great way to get students to really care if they understand the material because for many students it may be important that they do not put up false information if they are presenting it in a video online. If you gave this assignment and had time to do so it would be cool to show the students' videos in class. here is an example of onesuch video you could show in class.
http://www.youtube.com/watch?v=v0XUqliEnPQ