Here are the videos on Trinity GESE exams and they will help you choose your grade.

http://www.trinitycollege.com/site/?id=2046

Follow the instruction:

1. Watch Grade 3 and Grade 4
2. Try to write down the questions each grade              
3. Answer to the questions orally
4. Which grade could you write down and answer more questions?
5. This can be the grade fro you.

Anyway we will talk about it in class.