In the United States 10 year old students can either be in fourth or fifth grade depending on when their birthday is. It is possible for a student to be ten years old before completing fourth grade, in this case the student would we 10 years old for part of fourth grade and part of fifth grade.
If you are wondering the age of fourth graders well I explained that in this article I wrote.
I included a table below that shows you the ages of kids in grades kindergarten to eight grade.
| Grade | Age |
|---|---|
| Kindergarten | 5-6 |
| 1 | 6-7 |
| 2 | 7-8 |
| 3 | 8-9 |
| 4 | 9-10 |
| 5 | 10-11 |
| 6 | 11-12 |
| 7 | 12-13 |
| 8 | 13-14 |