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Sure, you’d want to use students’ incoming skills and trajectory to make sure you’re not penalizing teachers who have lots of low-performing kids.

• permo-w 2y ago
  that doesn't solve the stated problem
  • gnicholas 2y ago
    There isn’t an incentive to get rid of a student who is low-performing if that aspect is taken into account when calculating the teachers’ impact on student success.
    • permo-w 2y ago
      a student who is low-performing is not necessarily a student whose grades are low. they could also be a student who struggles to improve. and let's not forget the other perverse incentive here: if growth is all that's taken into account what happens to the students whose grades are already good?
      • gnicholas 2y ago
        It wouldn’t just be looking at grades, of course. If you have a 5th grader getting A’s that turns into a 6th grader getting A’s, no one would assume they haven’t learned anything. You could look at scores on the many standardized tests that kids already take, in combination with grades.
        • permo-w 2y ago
          scores on standardised tests != grades?
          • gnicholas 2y ago
            No, of course they don’t! This is especially true with the adaptive tests that are now used, which allow students to demonstrate competency well above grade level.