My son (just turned 5) is having his Woodcock Johnson III achievement testing done in two weeks. He tested well on the SB-5 and I would like to start the application process to the DYS program. I have read in a few places that achievement testing can be harder for children who have not had formal schooling (although he currently attends a Montessori program). Is there truth to this for those of you who's children took this test (or a similar test)?

My son has a gift for math and I have shown him all the proper ways that math problems are written. Is there any thing else that I should know?

Crisc