The comprehension approach which focuses on understanding the vocabulary is in contrast with the communicative approach because the latter one encourages learners to converse their personal experiences with partners using the target language.
Language learners in environments utilizing CLT techniques, learn and practice the target language through the interaction with one another and the instructor, the study of "authentic texts" (those written in the target language for purposes other than language learning), and through the use of the language both in class and outside of class. The comprehension approach is methodologies of language learning that emphasise understanding of language rather than speaking. This is in contrast to the better-known communicative approach, under which learning is thought to emerge through language production, i.e. a focus on speech and writing. Comprehension approach refers to a method of learning a new language through the process of understanding the meaning of words and expressions in the language as opposed to any other form of language learning. 
