"31 countries and economies maintained or improved upon their 2018 math scores, including Switzerland and Japan. Countries that did so shared some common charac

"31 countries and economies maintained or improved upon their 2018 math scores, including Switzerland and Japan. Countries that did so shared some common characteristics, including shorter school closures during the pandemic and fewer impediments to remote learning, per the report." Who could have predicted that lockdowns and Zoom class would have a negative impact on education? I'm shocked.