First, watch this:
Set up a Google Homepage to manage your information

Now go to Options and click which reader you want to use:

Then "add stuff" including a Google Reader

Now you can add subscriptions to your reader!

Add the RSS feed for your English class

Add the feed for FA Happenings

To search for ideas, click browse and type in a subject. Try TENNIS.
Once you get to a page, you might see something like this:
Or, you might have to grab the URL from the bar at the top of your page and paste it into the Add Subscriptions bar, like this:

To add your reader to your homepage, click add stuff. In the search bar, type google reader. The first one is the right one. Click to add!