You need to explain what you mean. Every lesson and revision is a mini test.
Sure, but they should be optional.
Can you explain your idea a bit? Maybe this is what you're looking for
Optional tests, maybe. I like it the way it is now, that you can test out of doing a category if you know the words. Don't look at the hover words if you want to test yourself, that's what I do. I like your idea, though.
Thanks for your comments. Sarcastic