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2. Duolingo - Wikipedia

   en.wikipedia.org/wiki/Duolingo

   Duolingo ABC is a free app designed for young children to learn letters, their sounds, phonics, and other early reading concepts. Released in 2020, it does not contain ads or in-app purchases. As of April 2024, iOS and Android versions are available, but only in English.

3. 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.

4. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

   www.aol.com

   AOL latest headlines, entertainment, sports, articles for business, health and world news.

5. 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 ...

6. Starfall (website) - Wikipedia

   en.wikipedia.org/wiki/Starfall_(website)

   Starfall was founded on August 27, 2002, [3] by Stephen Schutz, his wife Susan Polis Schutz, and their son, Jared Schutz Polis. [2] [1] Starfall arose from Blue Mountain Arts, a publishing house in Boulder, Colorado founded by Stephen Schutz.

7. Alina von Davier - Wikipedia

   en.wikipedia.org/wiki/Alina_von_Davier

   Von Davier is a researcher, innovator, and an executive leader with over 20 years of experience in EdTech and in the assessment industry. She is the Chief of Assessment at Duolingo, where she leads the Duolingo English Test research and development area. She is also the Founder and CEO of EdAstra Tech, a service-oriented EdTech company.