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Why does the ‘COVID slide’ look worse in math? Texas schools struggle to get students back on track Math can be especially tough to learn virtually. Rosa Mendoza with her two children, David Sanroman, 7, and Miah Rivera-Mendoza, 10, at Frank Guzick Elementary School in Dallas on Tuesday, Dec. 15, 2020. Mendoza has tried to help her kids make progress in math, and says they've thrived since returning to in-person school after months of learning virtually.(Lola Gomez / Staff Photographer) Rosa Mendoza tried her best to make sure her children kept up with their math lessons during the prolon...