This is an animated powerpoint presentation that I made to use in my Algebra class. It worked out much better than what I did last year so I thought others might find it helpful.
The slideshow takes students through several examples of how to factor monomials and animates the process to show what is happening. I also included a notes sheet that has the problems from the presentation all on one sheet which can be printed and given to students. This saves a lot of time since I don't have to wait for students to write down each problem every time I change slides.
I tried to make the slides easy to understand, but it would be a good idea to run through all the animations at least once before using it in your class. The nature of how powerpoint does its animations may mean that some of the slides will look messed up when you view them outside of a slideshow. But everything looks correct when you're presenting it to your class. I believe you should be able to check out the preview file to get an idea of what it will look like when you use it in your class.
If you have any questions or comments, please let me know. I've got a lot of other presentations along these lines that I use in my class; I just haven't had the time to clean them up and put them online.