Smaller class sizes not proven but teachers strike for them

LOS ANGELES (AP) — Most educators and parents see class size as an indicator of a quality education and have made it a priority in teacher strikes across the United States, but its effectiveness is still up for debate.
There’s no universal standard for class sizes, though some states and school districts have instituted policies.
While many believe smaller is better, studies are mixed on exactly how much it can improve academic outcomes, considering the cost.
The issue is at the hear