A number of the "muddiest points" from the session(s) on August 10 I've answered previously, so I will direct you to answers that you'll find here on this blog:
Most of these are in the "basic tools" category... which includes everything we looked at during the session in "Task 1". What's a category? See this post, which will help you find your way round the blog...

In a separate post, I've answered the question "Why bother with technology?"

And finally, someone wanted to know how to find things on Google. I would argue that they didn't mean Google, they meant finding things on the Internet...