From Teflpedia

Duolingo /ˌdjuːəʊˈlɪŋɡəʊ/ is a website and a mobile app the teaches languages for free. There is also a paid premium service.

Stephen Krashen has criticised it for promoting conscious language learning at the expense of language acquisition[1]

There is a Duolingo Wiki at Wikia[2]


External links[edit]

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