1) Find out as much as you can about gifted programming and testing in your district by using their website or the state site, etc.

2) One strategy that might help is going to the school, say things like I know my child is ahead in math and he gets good grades, but how do we know if he is progressing? Can we do some tests to see what his actual level is?

if they have no idea what type of test, you can ask for an end of year 2nd, 3rd, 4th grade test to be done.

Once the school has their own evidence on what the present level is of the student, it become much much easier to advocate.

Good luck!