Quoting myself again:

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There's a helpful beginner book about Blender in PDF format.

http://www.cdschools.org/cdhs/site/default.asp

Click "Academics" and then "Drafting Technology".

It clarified some basic problems for me. 

Also do yourself a favor, check books: 

I just received "Essential" Blender and it seems to be really good, begins from basics!

Also check the book "Introducing Character Animation with Blender" for info on animation.

I assume you noticed Camtasia is 300 USD per seat? You're throwing a lot of money to this, if people are interested. Please consider that...