Encountered Words List?
It seems as if Duolingo keeps track of the words I have encountered so far and have not yet seen. Is there a way to see a list of all the words that I have encountered for practice?
It also does not seem like any of the units are just straight vocabulary tests. Just getting a random word we are supposed to know and having to type it may be good review and useful in learning and really knowing everything cold.
And as a related note, going with the whole achievement theme and videogame-esque theme of Duolingo, having achievements for "you learned 1000 words", "10000 words" etc would be pretty cool mile markers.