Hi boogalo, sorry to hear about the situation with your son but there is hope! The CRCT is implemented by the state of Georgia to judge the preparedness and performance of students before their transition to the next grade, but as well all know standardized tests really cant measure what a student is fully capable of. If this is your son's first fail on the CRCT taking a retest is an option. Also you can look into taking summer school classes or even appealing to ignore the test on account of your son's performance in class. While these articles are from last year, both should be helpful to you:
 
http://www.ajc.com/metro/content/metro/stories/2008/06/28/crctpromotion_0629.html
 
http://www.ajc.com/services/content/printedition/2008/06/03/gwxschool.html
 
Hope this helps!