Data might be useful to tell you "hey that longtime great teacher approaching retirement has checked out early" or "the new hire who was struggling last semester has turned the corner" but it's no secret in a school building which teacher everyone hates and which one everyone loves.
If you woke up tomorrow and discovered you were an elementary school principal, you would have the lay of the land by week two at the latest.
The problem is not separating the flowers from the weeds, it's what will happen if you pull the weeds. Who's gonna take care of that room full of 8 year olds tomorrow? And for the next several years? If a weed shows up every day and doesn't commit any crimes, the downside of replacing them is larger than the upside.
Most teachers have strong union protections. It’s nearly impossible to fire one. Many districts now have a temporary period where they can be removed much easier. Once they have tenure it’s really difficult.
By and large, everyone knows.
Data might be useful to tell you "hey that longtime great teacher approaching retirement has checked out early" or "the new hire who was struggling last semester has turned the corner" but it's no secret in a school building which teacher everyone hates and which one everyone loves.
If you woke up tomorrow and discovered you were an elementary school principal, you would have the lay of the land by week two at the latest.
The problem is not separating the flowers from the weeds, it's what will happen if you pull the weeds. Who's gonna take care of that room full of 8 year olds tomorrow? And for the next several years? If a weed shows up every day and doesn't commit any crimes, the downside of replacing them is larger than the upside.