Task-based language learning is a student-centered approach where students complete meaningful tasks using the target language. It focuses on task outcome over language accuracy. Tasks are done in groups and include pre-task planning, task performance, report, analysis, practice. It engages students but may neglect discussion forms. Cooperative learning involves students working together towards a common goal, developing social skills. Benefits include higher achievement and interpersonal skills. Examples include think-pair-share, jigsaws, problem-solving. Factors like learning styles and brain processing should be considered.