I am located in CA and our school district offers GATE exam to the 3rd graders ,if qualified they are clustered inside the class and given accelerated works while those who didnt usually needs a teachers recommendations in 5th or 6th grade to get into AR or Honors class...This exam is also optional so those who opts out in 3rd grade gets to give it again in 5th grade..

I am not sure if my kids are in the gifted category but like every parent I would like them to sit for the tests & try but wondering which age would it be appropriate? In elementary or in middle school?
Your views on this please .