by Patsy M. Lightbown, Nina Spada
Teachers are often told that new teaching methods and materials are ‘based on the latest research’. But what does this mean in practice? This book introduces you to some of the language acquisition research that will help you not just to evaluate existing materials, but also to adapt and use them in a way that fits what we currently understand about how languages are learned.
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http://usafiles.net/14gK/How_Languages_Are_Learned_4th_Edition.pdf