This story was updated at 10 a.m. Jan. 1 to include details and reactions to the Covid-19 testing requirement in Gov. Newsom's plan. Gov. Gavin Newsom presented a $2 billion proposal for financial incentives Wednesday to prod school districts to bring back elementary school students for in-person instruction, starting in mid-February. School districts would receive extra funding — from $450 to about $700 per student — if they agreed to a timetable for reopening schools, a rigorous regimen of testing both students and staff for the virus, and a strict health and safety plan that teachers and employee unions would have to consent to. Newsom said more details would be available with the state budget next week.