I would not want 6th in with 7/8. To me, 5 and 6 are upper elementary and should be treated as such. Our district is a little unusual. We have 5 elementary schools that go K-4. In 5th grade, all 5 of the schools come together in one building that is called the 5th grade house. Then for 6th, they move to another building that stands alone and is called the 6th grade house. 7 and 8th grade come together at the Middle School and then 9-12 are housed at the High School.

I like it this way.