We moved to Brentwood from Chicago about a year ago and have been VERY impressed with Crockett Elementary School. The faculty worked with our children throughout their transition into the new school district. We received weekly updates on our child's progress in school, and also found the community to be very welcoming. The school also has a strong support network with parents, which do their best to support teachers everyday (e.g. pickup coffee, fundraising, volunteer in class, etc.).
I moved my kids from Montessori School to Crockett, and I am very impressed and pleased with the education they have received. I am even more satisfied now that we are going to have a Chess Club at Crockett. Additionally, this is the only two Williamson County Elementary Schools that offer Accelerated Reading and Math Programs as of September 2015.
Crockett is a wonderful school. My children love it too. I have felt very supported on some specific needs my children have. I highly recommend getting involved with the school, as a volunteer, in any way you can. It has been a wonderful experience so far.