Knowing vocabulary is key in listening, speaking, reading and writing. It's more important than grammar — you already knew that, didn't you? One of the challenges in second language teaching is how to help students retain new vocabulary - not just in terms of the number of new words (breadth of knowledge), but in terms of depth of vocabulary knowledge, e.g. the different morphological forms words appear in, synonyms, antonyms, and the company the words keep. While explicit teaching and repeated exposure are obviously important, researchers have also asked whether the type of task learners do with new words matters just as much as the number of times they encounter them. This is where the concept of Involvement Load comes in. The idea of Involvement Load was first proposed by Laufer and Hulstijn (2001) as a way of predicting how effectively a vocabulary task might promote retention. Rather than treating all practice activities as equal, they argued that some tasks push learne...
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