On your marks The economist vocable 678

A new report from the National Council on Teacher Quality (NCTQ), a research group, finds that most states now demand that student achievement should be a significant factor in teacher evaluations (see chart).

http://www.economist.com/news/united-states/21589427-states-are-starting-test-teachers-your-marks
It is interesting  to become a teacher : shorter hours, summers off, no accountability.
Now they will have "accountability" because student achievement will be a must for the teachers. Good teaching is very important. Bill Gates once said

 that if every child had mathematics teachers as good as those in the top quartile, the achievement gap between America and Asia would vanish in two years

What do you think ?