Suggestion: "I would like to practice this more" button on incorrect answers.
Whenever you get one wrong, there should be a little button next to 'continue' that says "I would like to practice this"
for example: you get one of the vocab words wrong (let's say, for example, you can never remember the difference between Tisch and Teller). when you check off the "practice this" button, those words are more likely to appear in subsequent exercises. Sometimes, I'll be doing a lesson on verbs or grammar, and the same noun will constantly show up. the problem is, I already know Apfel and Kartoffel really well. It'd be nice if it used a wider variety of the vocab that I still need to practice, and that I could tell it what I feel like I need more of.
Alternatively, there should be a button that says "I really got this one wrong, throw it back in the queue". Sometimes i'll pluralize a word incorrectly, or I'll get a consonant wrong. The site tells me "oh, that was just a typo, we'll count it", but I really feel like sometimes it's too lenient. We should be able to tell it "no, I actually got that wrong, give it to me again in a minute or two"
Yes, this is very similar to Anki. You should be able to mark how difficult something is so that way it can be better integrated with the spaced repetition algorithms. After all, duolingo doesn't know how hard a translation is for you, they just know whether you got it right or wrong.
Or even just a button to "tag to revisit" for any reason. There are many times that you might want to later ask a question about one of the exercises.
Then later you can revisit the tagged items and ask questions (in here, or of native speakers or teachers).
BTW, this revisit option should not just be for questions that we got wrong. There are MANY times that I GUESS and get it right, but still know I need further study. This is certainly the case with accidentally getting the gender right.
This is an excellent idea, though 4 years old, apparently not an idea picked up by the powers-that-be.
Presumably, there is some record within the programming to track which words are used during practice. It'd be nice to have access to that, instead of keeping it hidden from us.
As noted, including a "practice this button" would be great.
The option could also be provided in the words list. Either tag it (tick box) or a numeric value to increase the frequency of inclusion in lessons.
Also, in the words list, a "score" for the number of correct/incorrect uses of a word so we can see which words are giving us problems.
I think we still need this.
I'm getting little to no practice learning the actual words in one of my classes in Japanese right now, a language where you have to learn several different alphabets and ways of writing a word, and I'm really struggling just going over whole sentences over and over without really learning them fully.