Experiences that require active use of the language are essential for successful language acquisition. Studying the grammar of a language without using that language in meaningful contexts never leads to real fluency.
In the following TED talk Roberto Guzmán highlights the essential nature of creating opportunities for language use in the classroom that mimic use of the language outside the classroom. This is nothing new. What sets the talk apart is the level to which Guzmán incorporates critical thinking (logic) into his work with students. Real-world language activities coupled with high levels of critical thinking can and does lead to dramatic improvement in language use.
After you listen to the talk, feel free to leave a comment below.