The cognitive approach to language learning deals with mental processes like memory and problem solving. It emphasizes that language learning is an active mental process, not just habit formation. The cognitive approach focuses on learning strategies that are compatible with learners' cognitive styles. Teachers encourage learners to think about their cognitive preferences and how to optimize learning. Grammar can be taught deductively or inductively, and errors are seen as part of the learning process. The role of the teacher is to analyze the language being taught and explore different student needs, while students take responsibility for their own learning.