Melody

Yes that is how it is learned.  

The more you know the easier it is to add to that knowledge too.   

come on Bio, we need a bit of explanation here!

Why do you need our ghosts help?  

You have his attention.   Now what?

You are becoming an expert with GeoGebra Chris 

Thanks for the smile anon.  

Great pic Chris    

Thank you Rochelle.

Your post looks both attractive and very helpful :)

Here are some you tube clips and other resources.  Perhaps one of these will help.  

Imaginary numbers is a very broad topic so perhaps you cold be more specific and we could help you.  :)