IELTS Writing Task 1: ages and age groups It's easy to make small mistakes when describing ages and age groups Here are some examples that should help One person: • • • He is 10 years old He is a 10-year-old He is aged 10 More than one person: • • • The children in the class are all 10 years old It is a class of 10-year-olds (or "10-year-old children") The children in the class are all aged 10 Age groups with more than one person: • • • The chart shows the preferred hobbies of children (who are) between 10 and 12 years old The chart shows the preferred hobbies of 10- to 12-year-olds (or "10- to 12-yearold children") The chart shows the preferred hobbies of children aged 10 to 12 Note: If you miss the hyphens (-), it's not a big problem It won't affect your score