You could increase per teacher productivity by running 12 months of school per year, but you would increase costs; and in some parts of California, you would need to rebuild schools with air conditioning to hold classes effectively in the summer.

Covid showed distance learning doesn't work for most kids. So you can't eliminate real estate costs or hire educators in low cost areas. Computerized education doesn't seem to work, either.

>You could increase per teacher productivity by running 12 months of school per year

Productivity is output divided by some input, either labor or money. Working for longer isn't going to magically increase productivity.

>Covid showed distance learning doesn't work for most kids. So you can't eliminate real estate costs or hire educators in low cost areas. Computerized education doesn't seem to work, either.

Right, I don't have a specific solution for increasing teacher productivity, but it's not obvious that it's a law of economics that it can't increase. People thought lawyers and doctors couldn't be automated away, then came chatgpt.

> You could increase per teacher productivity by running

Many would quit. The only perk is having the holidays free.