Children usually start kindergarten at age 5. So some 5 year olds are in kindergarten. Others would still be in preschool or pre-kindergarten if their parents chose to send them (they are not part of compulsory education, kindergarten is the first required year of schooling).
preschool or kindergarten, depending on when their birthday is
If you are 10 years old, you would typically be in the fourth grade if you are in the American education system.
A 14 year old is in 9th grade or in 8th grade.
A 6 year old is in 1st grade.
a 15 year old is normally in 9th or 10th grade
A 14-year-old is typically in 9th grade in the United States.
A 12-year-old boy would typically be in 7th grade.
usally grade 2
grade 4 usually
1st grade
a 13 year old would normally be in 7th or 8th grade depending on whether or not they were born before September.
Yes, "five-year-old" can be a noun when referring to a person who is five years old. For example, "The five-year-old played outside."