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  2. File:Duolingo logo.svg - Wikipedia

    en.wikipedia.org/wiki/File:Duolingo_logo.svg

    This vector image was created with Inkscape-default. ... Duolingo logo in SVG format}} {{es ... If the file has been modified from its original state, some details ...

  3. File:Duolingo logo (2019).svg - Wikipedia

    en.wikipedia.org/wiki/File:Duolingo_logo_(2019).svg

    This logo image consists only of simple geometric shapes or text. It does not meet the threshold of originality needed for copyright protection, and is therefore in the public domain . Although it is free of copyright restrictions, this image may still be subject to other restrictions .

  4. Duolingo - Wikipedia

    en.wikipedia.org/wiki/Duolingo

    Duolingo Math is an app course for learning elementary mathematics. It was announced on YouTube on August 27, 2022, at the Duocon 2022 event. [69] Duolingo Math covers math topics through an interactive and gradual approach. It starts with basic arithmetic—addition, subtraction, multiplication, and division. The app also teaches fractions and ...

  5. Did you complete your lesson today? The Duolingo bird got old ...

    www.aol.com/did-complete-lesson-today-duolingo...

    Many Duolingo users have noticed the happy-go-lucky bird had become wrinkly and somber in the application’s icon. But, no one from Duolingo has confirmed why Duo decided to go dark.

  6. Luis von Ahn - Wikipedia

    en.wikipedia.org/wiki/Luis_von_Ahn

    Duolingo logo. In 2009, von Ahn and his graduate student Severin Hacker began to develop Duolingo, a language education platform. They founded a company of the same name, with von Ahn as chief executive officer and Hacker as chief technology officer. In November 2011, a private beta test of Duolingo was launched and the app was released to the ...

  7. Severin Hacker - Wikipedia

    en.wikipedia.org/wiki/Severin_Hacker

    Through Duolingo, Hacker wants users to have the option to increase their 'stay-tuned quota' which involves adjusting the learning time and difficulty of the course. Another idea derived from Hacker's philosophy was to apply gamification to Duolingo. This was to apply game elements and principles instead of classroom learning tools to the ...

  8. Duolingo English Test - Wikipedia

    en.wikipedia.org/wiki/Duolingo_English_Test

    The Duolingo English Test (DET) is a standardized test of the English language designed to be internet-based rather than paper-based. DET is an adaptive test that uses an algorithm to adapt the difficulty of the test to the test-taker.

  9. Template:Non-free logo - Wikipedia

    en.wikipedia.org/wiki/Template:Non-free_logo

    For example non-free use rationales, see Wikipedia:Use rationale examples. This tag is only for use on images of logos. Template:Non-free use rationale logo may be helpful for stating the rationale. Please do not use this template to tag non-free icons of computer software. Such items should be tagged with {{Non-free computer icon}} template.