Visualizing 2019-2022 change in math achievement in the U.S.

This seems to track the larger trend of Covid-induced out-of-classroom learning loss.

I'd be very interested to see how this tracks across states/counties with a higher usage of charter school vs those more reliant on the public system.

This is just anecdotal but glancing around the counties I'm at least somewhat familiar with seems to indicate to me that voucher programs seem to attenuate this loss.