Let me paint you a picture. My neighbor's kid, bright as a button, used to love science. Then the state tests started. Now he memorizes formulas and can't tell you why the sky is blue. That's what we're actually getting with this system.
You say tests help identify gaps, and sure, they can. But we're not using them that way. We're using them to rank schools, punish teachers, and sort kids into winners and losers. Finland does it differently because they use tests as one small tool, not the whole toolbox.
The real issue is opportunity. Kids in wealthy districts crush these tests because they have tutors and prep courses. Kids in poor districts? They get the same test but not the same resources. So we measure the gap, pat ourselves on the back for "data," and do nothing about the actual inequality. That's not flying blind - that's choosing to look the wrong way.
11:13 AM