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This page contains questions about courses (often referred to as "skill trees").

What's a language tree?Edit

Main article: Language tree

The way Duolingo teaches requires users to finish a skill or set of skills before moving on to the next set [1]. The skills are displayed in a way that makes them look slightly like a "language tree ". Users must complete all the skills on each row of the tree before moving to the next row[1]

Will I be fluent when I finish Duolingo?Edit

As of July 2015, one of Duolingo's goals is "helping students become fluent"[2]. It shows an estimate of your fluency in some courses (e.g. Staff made courses)  based on [3][4]:

Words you know, how important those words are, how well you know them, and how likely you are to forget them.

What does my fluency score mean? Edit

It is an estimate based on accuracy of answers and progress through the Language Tree. One "can achieve a fluency as high as 50-60%"[5]. Duolingo claims that such a rating is equivalent to their own "advanced proficiency" score[6].

Why doesn't course X have bonus skills, words or flashcards?Edit

Some features are not available in all courses[7][8].

What is the recommended learning routine?Edit

According to Duolingo, "learners should first focus on finishing all the lessons in a skill, and later come back to review them at just the right times"[9].

Is there a standardised language proficiency test​?Edit

Duolingo is still testing its proficiency tests and has two main assessments:

Where are the grammar explanations (tips and notes)?Edit

DuolingoGrammar
There are some grammar notes (tips and notes) available in some skills within some courses [11]. However, not every single skill, course or platform (e.g. mobile) has tips and notes [12].

How many people have completed courses? Edit

As of October 2013 more than 100,000 people have completed a course[13].

In which courses do students make the most progress? Edit

According to Duolingo, students make more progress in courses that teach English[14].

When are typos accepted?Edit

According to CEO Luis von Ahn[15]:

We accept something as a typo if it is one letter off AND is not a valid word. So for example, we accept "te" as a typo for "the" but we don't accept "he" as one.

Do lessons focus more on Recognition or Recall ?Edit

The exercises have a careful balance between maintaining user motivation and teaching effectively. According to Duolingo CEO Luis von Ahn[16]:

The issue is that every time we try to give more recall exercises (where you translate from the language you know to the new language), people use the website less!

What are streaks?Edit

Main article: Streak

Your streak is a measure of how consistently you use Duolingo.[17] Your streak increases by one for each day you meet your goal and resets to zero when you miss a day unless you buy a streak freeze ahead of time.

Will the courses ever be expanded?Edit

Yes, there are plans to expand the current courses[18]. For now there are Bonus Skills that can add more content to a course.

Why aren't there human voices in all lessons?  Edit

This is due to financial and technical reasons [19].

How do I change what course I'm taking?Edit

Wiki FAQ Course Change Language

Change course. Duolingo 2015

See this discussion with several methods to switch between courses among them some quicker than the one described by the following (official) link.

  1. Here is the official link.
  2. From the Home tab , click the language portal-badge (flag icon).
  3. Choose the course you want from the "Learning Language" options.
  4. Click "Save changes".

Notes: Changing to a course with a different base language (e.g. English in the example image) will also change the Duolingo web interface to that language. However, your progress in the courses from the original language will not be deleted.

Where is the vocabulary section?Edit

See Words.

How do I reset or remove a course?Edit

  1. Choose "Settings".
  2. Then, choose "Learning language".
  3. Click "Reset or remove languages".
  4. Finally, click "Save".

NOTES

  • You cannot remove a course unless you have another course that shares the same base language.
  • Update: Removing or resetting one course will not affect other courses that share a target language with it. These are now separate courses. [20]

How do I report an error in an exercise?Edit

You can report an error in an exercise using the "Report a Problem" button that appears below the exercise after you've entered your answer. Check the checkbox(es) next to the error(s) you wish to report and click "Submit". [21]

DL Sentence Report A Problem eng

Image Report a Problem in Lesson

Why aren't serious errors in sentences fixed quickly? Edit

A "large fraction of the user reports are erroneous"[22] so it takes considerable time for contributors to find and correct mistakes. Problems with audio are generally a result of connectivity issues[22] or audio generated by TTS engines.

Where can I get help on an exercise?Edit

  • If you are doing a lesson (as opposed to a practice), look for the "Tips & notes" (or Grammar explanations) button near the top right of the exercise area[23]
  • Use the "Discuss sentence" button that appears below the exercise area, and see if your question has already been asked and answered there. If it hasn't, go ahead and ask.
DL FAQ Lesson Discuss Sentence eng

Image Discuss Sentence in Lesson

Note: Do NOT use the Sentence Discussion area to report an error of translation (e.g. that a correct translation is not accepted) that you are reasonably sure about.

DL FAQ Lesson Discuss Sentence Stop the Clutter eng

Image Sentence Discussion Don'ts

How can I help others learn my language?Edit

You may answer questions in the discussion or sentence discussion section. When answering a question try to back up your answer with dictionary or grammar references[23].If there is no section for the language you want to help with visible in the discussion area you will have to change to a course teaching that language to see it. Instructions for doing so are available here.

Can I change the voice in the lessons ?Edit

As of September 2014, Duolingo does not support that[23]. However, some courses may have multiple voices.[24]

How effective is Duolingo at teaching a language?Edit

One scientific study found that "a person with no knowledge of Spanish would need between 26 and 49 hours (or 34 hours on average) to cover the material for the first college semester of Spanish."[25] Duolingo has also several positive reviews and awards for their teaching methods.

What dialect does Duolingo teach for language X ?Edit

You can find out which dialect a particular course teaches by clicking on it in the course listing page and reading the "About the course" section[26].

Why does the course for language X use the flag for country Y?Edit

For most languages, the flag corresponds to the country where the dialect Duolingo teaches is spoken.[18] In some cases, however, the flag is chosen simply for convenience[18]

Should I learn multiple languages at the same time?Edit

This really depends on personal preference and ability. You may refer to this article (archive link) or this for a more detailed discussion.

What are XP?Edit

XP (short for "experience points") are a reward you get for finishing lessons or practicing. As your XP increase so does your Duolingo language level. 

What is the highest level?Edit

The highest level you can reach in a language course is 25 and requires 30000 XP [27].

How can I see number of XP left until next level?Edit

The profile page should have that information.

What does my level really mean?Edit

It just means that you've accumulated a certain number of XP from doing lessons & practices. Some correlation has been found between XP and word "peeks" on the one hand and standardized language test results on the other[28] but the correlation isn't perfect. The correlation may also change as Duolingo changes how much XP is awarded for each task.

ReferencesEdit

  1. 1.0 1.1 https://www.duolingo.com/comment/899070
  2. http://www.technologyreview.com/news/539096/getting-fluent/
  3. https://www.duolingo.com/comment/8730055
  4. https://www.duolingo.com/comment/8726201
  5. What does my Fluency Score mean? https://support.duolingo.com/hc/en-us/articles/205933480-What-does-my-Fluency-Score-mean- . Retrieved: November 2015.
  6. http://web.archive.org/web/20160709084022/https://englishtest.duolingo.com/scores
  7. https://www.duolingo.com/comment/3743060$comment_id=3764271
  8. https://www.duolingo.com/comment/8726201
  9. http://blog.duolingo.com/post/62995947540/a-new-duolingo-for-ios-7
  10. https://testcenter.duolingo.com/
  11. http://www.fluentin3months.com/duolingo/
  12. src=http://www.reddit.com/r/duolingo/comments/37s21c/fight_the_discrimination_against_android_users/crprtas
  13. http://edition.cnn.com/2013/10/15/tech/mobile/duolingo-incubator-language-teaching/
  14. For which courses do students make the most progress. Duolingo blog. Retrieved 2016-08-30. http://web.archive.org/web/20160830191856/http://making.duolingo.com/for-which-courses-do-students-make-the-most-progress.
  15. https://www.duolingo.com/comment/1304207$comment_id=1305135
  16. Recognition vs Recall
  17. https://www.duolingo.com/comment/568419$comment_id=568723
  18. 18.0 18.1 18.2 "IAm Luis von Ahn, co-founder and CEO of Duolingo. AMA.", http://www.reddit.com/r/duolingo/comments/230umo/iam_luis_von_ahn_cofounder_and_ceo_of_duolingo_ama/cgsd5au
  19. Why aren't there human voices for the lessons?
  20. See staff member Brent's comment", https://www.duolingo.com/comment/4352750
  21. "Is there some way that more serious problems with the Duo Website could be given priority?",https://www.duolingo.com/comment/2405172$comment_id=2420531
  22. 22.0 22.1 [https://www.duolingo.com/comment/2405172 Is there some way that more serious problems with the Duo Website could be given priority?]
  23. 23.0 23.1 23.2 "What would you want to see in a FAQ?", https://www.duolingo.com/comment/781395
  24. http://www.reddit.com/r/duolingo/comments/32qi5m/male_voice/cqdqgov
  25. "How effective is Duolingo?", https://www.duolingo.com/effectiveness-study
  26. https://www.duolingo.com/courses/all
  27. https://www.duolingo.com/help
  28. "Duolingo’s Data-Driven Approach to Education", http://blog.duolingo.com/post/41960192602/duolingos-data-driven-approach-to-education

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