Recently the local school system announced they were replacing 150 out of 5,634 teachers at under performing schools. What a blatant and bold face lie. They will be relocated to another school. Not fired! Since they were the reason cited for the underperformance why foist them off on students in another school.
Children learn on their own. A good teacher will mentor and enthuse a child allowing for a greatly enhanced learning experience. Children are naturally curious and desire to learn. A good teacher motivates the desire and directs the curiosity. They are able to function with both a group and an individual.
A bad teacher is little more than a baby sitter. They are guardians of the instructional material. Their group level dynamic many times is a disincentive and may squelch motivation. They will normally function well on an individual basis; but, the desire and enthusiasm comes from the child. Not the teacher's ability.
The 150 bad teachers represent 2.6% of the system's teachers. This is statistically accurate number on a bell curve (http://www.robertniles.com/stats/stdev.shtml ) distribution of teacher performance. I'm sure the bell curve of the same 5, 634 based on ability would show a shift to the good teacher (over performer) side. So why the accurate number on the performance curve?
Even good teachers get frustrated and resentful when they watch their peers exert less effort for the same compensation. Since they do less, they have the time to promote themselves to superiors and will frequently get recognition for some activity, usually an uneducational endeavor. Over time the frustration and resentfulness will adversely affect the job performance of all the other teachers even the best.
To truly improve overall system performance, these teachers should be fired not relocated.