Koncerned, if you think you can "grade" a teacher based on standardized tests (the idea advocated by people like RR) I invite you to substitute in a school with multiple Extended Resource rooms.  The average person would get eaten alive in the Anchorage School District. Many teachers endure getting regularly kicked, spat in the face, scratched, sh*t broken, screamed at, etc...and that doesn't even get to the rude, abusive, negligent, vengeful parents they have to deal with on a regular basis all while administration says "The parent is always right".  Did you know that you can bring your child to school 2 hours late and pull them out 2 hours early every day and they are not considered absent (thanks 90 by 2020...).  Now take all this bullsh*t and tell me how again the teacher should be held accountable for the general public failure as parents/citizens?  Oh by the way...you must also be one of the most educated in your community and maintain a license.  Thanks society!