Regarding remote learning and achievement this article is a very good source on the numbers and what still is lacking:
Here is the key take away
"The Covid-19 pandemic is arguably the largest disruption America’s K–12 education system has ever faced. For students, this disruption—and the differences in districts’ response to it—will harm academic achievement and likely exacerbate longstanding achievement gaps".
@LibertySpeaks The poor who may not have a computer nor the internet will be left so far behind their class mates. It's a real tragedy in the making.