Is landmark middle school an a school?

There is no single, universally accepted definition of an "A school." The term is often used locally and can refer to different things depending on the school district or state. It might refer to a school with high test scores, a high graduation rate, or other measures of academic success.

To find out if Landmark Middle School is considered an "A school," you need to specify which Landmark Middle School you're asking about (there are many schools with that name) and the rating system used by its local school district or state. Then you can check the district's website or relevant state education department website.