Middle School Praxis Help

    I am relocating to TN in July from AZ. I am fully
    certified here and have been teaching middle school social
    studies and language arts for my entire teaching career, 7
    years. When I submitted my application and received my
    certification back I was only certified K6 whereas here in
    AZ I am K8. TN is telling me that the only way I can
    teach middle school again is if I take the Middle School
    Praxis. This is mildly freaking me out. From what I can
    tell it covers all subjects - math, science, language
    arts/reading, and science. I don't know math or science
    but middle school is all I know how to teach. Is the test
    really all that bad??? Any help, input, or suggestions
    would be greatly appreciated.