I hate to say this but I have the feeling that this year is going to be a "lost year" for an awful lot of kids. For every parent who keeps on their kid to do their work, and actually follows through with making sure, there is likely at least one (or more likely more than one) who's too busy, too illiterate, too disorganized or too lazy to do so.
Bottom line in a lot of cases is that the "smart" kids essentially teach themselves no matter what the format (they see something that sounds intriguing so they investigate it further for example) while it's the average kids who have to have a push who will fall through the cracks this year. That's not even taking into account the 20% (or more) that are behind, have little encouragement or supervision at home, whose parent(s) him or herself is barely functional, who are going to absolutely crash and burn this year.
It will take years to catch them up, if it ever happens. These are also the kids that are the ones for whom year round school is being advocated for because they lose so much just in the 2+/- months of Summer.