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Duolingo Inc. [b] is an American educational technology company that produces learning apps and provides language certification.Duolingo offers courses on 43 languages, [5] ranging from English, French, and Spanish to less commonly studied languages such as Welsh, Irish, and Navajo, and even constructed languages such as Klingon. [6]
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 ...
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 ...
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.
Duolingo features a course for Klingon, which was released on March 15, ... For example, there are several words meaning "to fight" or "to clash against", each having ...
Esperanto (/ ˌ ɛ s p ə ˈ r ɑː n t oʊ /, /-æ n t oʊ /) [7] [8] is the world's most widely spoken constructed international auxiliary language.Created by L. L. Zamenhof in 1887 to be 'the International Language' (la Lingvo Internacia), it is intended to be a universal second language for international communication.