The document describes a cognitive model of the listening process and identifies opportunities to teach vocabulary during listening activities. It discusses Vandergrift's model of listening comprehension, which involves decoding words, parsing words into grammatical units, relating information to prior knowledge, and activating schema. The document suggests teaching vocabulary at three critical moments: when students need phonological knowledge of words, sentences patterns, and register depending on context. It provides an example lesson on luck that incorporates prereading of vocabulary, listening comprehension questions, and a class discussion.