Here are some key points about authentic materials:
- They expose learners to real language use in context
- Can be motivating and engaging for learners
- Develop cultural understanding
- However, they may contain unfamiliar vocabulary, complex grammar etc. that is difficult for learners
- Need to be adapted or supplemented to make them comprehensible and level-appropriate
Overall, authentic materials are valuable but need to be selected and used carefully depending on learners' level.