the lock-step stuff is so hard on these kids - what they "can't do" is so often simply what they haven't met yet.
while i get that dealing with a kid with gaps in their skill set seems like so much work for a teacher, it kills me that they can't see past the wrongheaded notion that kids only learn in school, and can only absorb material in one specific order at a proscribed pace - as arbitrarily dictated by the school district.
i mean, what on earth do they do with kids who move to their territory mid-year? do they not bother accommodating their gaps?