The 'great schools' link indicates that the percentage of teachers with masters degrees at Butler Elem. is 30%. The state average is 32%. At Maude Saunders, teachers with masters degrees is 22%. I guess somebody thinks that that the high schools deserve better teachers.
Here is a quote from the Great Schools site from which you are quoting averages & drawing conclusions:
"What does a teacher's education level tell you about his qualifications?
Teachers who have advanced degrees have shown a commitment to advancing their own learning, and are generally paid more for having an advanced degree. Some studies have shown that a teacher having an advanced degree does not have any significant effect on student achievement gains at the elementary level, but having an advanced degree does have an effect at the high school level, particularly in advanced courses in math and
science."
So, it does sound like it's more important to have advanced degrees at the secondary level which would be consistent with your statement.
I've always felt that a teacher who worked to earn a graduate degree is more dedicated. Also, teachers with graduate degrees usually are more experienced. But the trend for teachers seems to lean toward hiring youthful educators. I'm thankful that I had teachers with lots of experience. Unfortunately, my children don't seem to be as fortunate. I'm sure older rich people don't care. They're paying less in property taxes and it doesn't matter if their homes are worth less. And many of them don't have kids or grandchildren in Walton County Schools. I guess the tea party folks are pleased that the school district isn't having to pay for experience.