It shouldn't have to be spelt out to you that it is the best interests of your child to keep in regular communication with their teacher. Don't you want to know what's going on in your child's life?
Yes, but the arguement here is what is an appropriate level of involvement?
I mean, you see the teacher everyday, are you implying that anything less is not enough?
Nobody is suggesting that you put your kid on a bus day one in prep and wipe your hands of the whole deal. But rather, what level of communication is reasonable and expected.