Looks nice at first glance. I had a bit of confusion with the Spanish course. I read through the basic categories, and decided to say "Claim Known" for one of

Looks nice at first glance. I had a bit of confusion with the Spanish course. I read through the basic categories, and decided to say "Claim Known" for one of them. It then asked me to "Choose a way to learn." This was odd, because I was just saying I knew the words, not in a particular direction (confusion #1). I chose that I knew them English => Spanish. I then went up to the top to set "English => Spanish" for the whole course. This jumped me into the course, which I did not expect (confusion #2). I hit "back," went back to the landing page, searched for the course page, and went to the course in order to try and learn a particular set. I scrolled down to one I didn't know, and clicked on "English => Spanish" to start the set. Unfortunately, the "Claim Known" button was already active, which I hadn't realized (surprising, since I felt like I re-entered the course from scratch). So clicking on "English => Spanish" sent those words off as "known" (confusion #3). Now I have a list of words that I don't know marked as "known," and I don't know exactly what this means (confusion #4) and how to find these words to tell the system I don't actually know them (confusion #5), and I'm not allowed to learn those words even when I click "Learn Now" because it tells me I know them already (confusion #6).