In IELTS Speaking part 3 you need to give longer answers.
The main focus of this part of the test is to talk at length and give examples. The questions are much broader than in part 1 of the speaking test. You are marked on grammar, vocabulary, fluency and pronunciation.
You will not be marked on your ideas. There are about 6 or 7 question types that could come up. They might be about giving an opinion, comparing, predicting something in the future, talking about people, contrasting and so on. Click here for a lesson on the types of questions in speaking part 3.