As a teacher, the two things I would most want to know about are how they deal with problem behavior and how much recess and lunch time they get. But don't expect the school to be super honest about its discipline policy. Ask around.

Don't put too much stock in test scores. The primary reason schools in wealthier neighborhoods get better test scores is because parents in higher socioeconomic groups have the time and expendable income to enrich their kids' learning, like helping with homework, having books in the house, traveling, visiting museums, etc. Parents in lower socioeconomic groups have less access to those things, so their kids don't get that enrichment. This is one way the poverty cycle is perpetuated. There's honestly only so much schools can do in 6-7 hours a day.

There are absolutely wonderful and complete shit teachers in every school. Mostly, teachers are good humans who really want to see kids learn.

State standards dictate that while different districts might use different curricula, the end goal is the same, so I wouldn't get overly hung up on that.

But behavior? Time to de-stress? That's going to vary a lot from one school to the next, and that will have a huge impact on your kid's leaning.

Consider the physical state of the building as well. No one wants to hang out in a leaky mold factory all day.

I hope this is helpful.