Teachers Unions? More along the lines of concerned parents like myself whose children are suffering from freaking anxiety and at least one lacks the ideal environment with peers for handling a learning disability. Further along in the article it states that children with learning disabilities and other issues statistically don’t cope well without a physical environment in which their peers are present. Teachers Unions would far more likely want the teachers to just teach online just to be safe. We’re also talking the medical community as well, demanding evidence of what is real about the COVID-19 vs. sensationalism.
There’s no limit to the number of students a given teacher of a particular subject can teach online. Of course the teachers’ unions want to get the children back into the schook buildings. They want to head off demands by taxpayers for staff reductions and the reduction in school budgets those reductions would bring.