In Los Angeles, by contrast, the vast majority of parents, teachers and students are embracing or at least tolerating the stringent measures the district has adopted, with fewer than 3 percent of the district’s 450,000 K-12 students opting for remote learning instead. And while it remains to be seen whether L.A.’s ambitious approach will prove successful in keeping the district’s approximately 1,000 schools open for the entirety of the school year, local leaders and public health experts say the district is raising the bar in a way that’s being watched closely and could influence educators nationwide.