Distance learning in Los Angeles schools is definitely working better than it did last spring, but that’s hardly a ringing endorsement. Generally speaking, remote classes are still an abysmal operation in which most students lose out, and the ones with the greatest need lose most.That assessment comes not from school administrators or researchers but from the best source of all: L.A. teachers themselves, the people who are trying to transmit skills and knowledge while giving students some sense of normality in a world gone haywire. Their sentiments are especially noteworthy considering that their labor union, United Teachers Los Angeles, has...