>Uh, sure, but is that because of tenure? I doubt it. Are experienced teachers blocking good ideas and protecting themselves from younger teachers with tenure? No, not likely. Experienced teachers are protecting themselves from administrators. The younger teachers don't have this protection, unfortunately.
Tenure means you can sit in the back of the classroom and read travel magazines all day, like my AP Physics teacher did, while the class does nothing but take problem sets. That the class then passes around and then grade.
The tenure system certainly doesn't protect the starry eyed new teachers who do all sorts of creative and interesting things (and get good results) but end up quitting because the system grinds them down. And no, giving tenure to them wouldn't really help either, as a lot of them quit, not get fired. Though some do get pink slipped in order to avoid giving them tenure. Some districts I work with pink slip pretty much everyone they can every year and then rehire them back.
>That is what I said above, but what would make this discussion more interesting would be some numbers. Exactly how many bad teachers are there? As a percentage of total teachers? And how many of those bad teachers have been identified as needing to be removed, but are being blocked by tenure? In my experience, "bad teacher" is often "teacher I don't like" which is another reason tenure exists.
Number would help us to fire bad teachers, wouldn't it? That's why teachers unions are so adamantly opposed to it. And yes, I've heard their spokesmen repeat the claim that you made, that they support "reasonable" evaluation of teacher performance, but the actual reality is that they don't. Teachers themselves are - and with good reason - paranoid about whatever evaluation system is implemented, but the CTA opposes everything in practice.
California applying for Race to the Top (RTTT), which will add accountability measures? The CTA offered $18k to every state senator who voted against it. It's nice being the organization with the most political money in the entire state, is it not?
LA implementing a reasonable evaluation measure? Opposed. Doesn't matter if it would actually be used to determine pay or firings or whatever.
I could probably do a fairly comprehensive analysis on what percentage of teachers are bad. I've got data spanning a large chunk of the state. But just pulling up one sample school district's results for a test I administered, elementary school teachers (and their students) were given a standards-based test in a core academic subject (which I won't mention so as to provide a bit of anonymity). Note that this was *the same test* their students took. It was a student test. So it was pretty basic stuff. Here's the results:
Number of Teachers (N) taking test: 44
Those failing (= 60% && "bad teacher" is often "teacher I don't like" which is another reason tenure exists.
Which is, again, why we need a comprehensive and fair evaluation system. If teachers could lose tenure by scoring abysmally on a standardized content knowledge test, but keep it otherwise, then only the incompetent teachers could be fired. And only then if their principals thought they weren't salvageable. Teacher training programs can be effective at fixing these issues.
>All evaluations are subjective. Just because you can put a number on something doesn't mean it is helpful or meaningful.
I don't think you know what subjective means. Subjective means that a principal can do a classroom evaluation and give a teacher he likes a good review, and a teacher he doesn't like a bad review. Objective, by contrast, means observer-independent. It means that the system judges all people equally, It doesn't mean that the test is especially meaningful, as you say, since you could objectively assess things unrelated to a student's knowledge. But I will tell you that if Johnny comes in to your English class knowing 5000 words in the English language, and walks out of your class knowing only 3000, then you're failing at your job as an English teacher. Fair assessments can track this sort of thing.