Oh I think we are referring to two different things. One poster suggested that performance-based pay for teachers is a simple solution and that it could be implemented with metrics. I countered because that is not simple. In addition, many teachers are doing support roles, library, phys ed, social work, reading specialist, etc.
OTOH metrics and objective standards are definitely worthwhile indicators. Agreed. In fact, in the modern age of data I think we ought to look at more things to see if there is a latent pattern positive or negative. Reading and math scores are not enough. I want to see physical fitness data. I want to know how many words per minute kids can type. How many dental cavities do they have. Can they pass a civics quiz on state or federal government. Do they know basic geography and have some literacy about the world.