Michael Gottfried of the Graduate School of Education said it’s difficult to quantify how school is going for students amid the pandemic. “We’re sort of building the plane as we fly it,” he said. “Everything’s up in the air now. Everything’s been disrupted just from the measurement side.”
https://whyy.org/articles/early-data-show-hopeful-signs-for-pandemic-learning-in-philly-but-huge-questions-remain/ WHYY (Philadelphia)