So you don't think students should be asked to apply the facts they know to learn a new fact?
In maths there’s a popular lesson where you get kids to ‘discover’ pi, like the ancients did, by measuring the circumference and diameter of a bunch of circles, dividing one by the other, and spotting that they all have the same answer.
I did it for years. The kids never fucking discovered pi. They spent a lesson with bits of string and pringles tubes measuring away, filling out tables, being busy. They’d dutifully divide one by the other, record their results. Then I’d ask what they’d spotted and they’d look at their answers which ranged from 2.something to 3.something if you were lucky and they’d not fucked up and they would shrug. The best you could hope for was ‘it’s about 3’.
Then you’d have to explain pi to them, tell them what it was meant to come out as, explain the significance. And then the next lesson they remembered fannying around with margarine tubs but not the formula and basically you’d wasted a whole lesson when they could have been actually doing some maths.
That’s discovery learning.