How old is your son? For us it is huge because even though DS6 is perfectly capable of 3rd grade material, his processing speed keeps his timed test scores in 1st grade. The school is going to do a reading placement test on Monday to test for speed (which I know he won't pass), accuracy (strength) and comprehension (very strong). The funny thing I have noticed with VS DS6 is when he reads and writes he leaves out the "unimportant" words. In other words the words that could be left out and the meaning of the sentence still makes sense. Ex: Mom brought home a bag of apples. would read "Mom bag home apples". Try out this link...
http://www.visualspatial.org/Product_Marketing/RTTK/kidquiz.pdf
