Clarifying Karl Popper’s epistemology

Karl Popper’s theory prevails because it solves problems other theories of the growth of knowledge fail to solve, it is a better explanation than its rivals, and it unifies ideas previously thought to be unconnected.

Why bother with the philosophy?

How you think people learn informs all your interactions with your children. If you view learning as a creative act in a critical-rational process, you will value highly the idea of consent in decision-making. If you believe people learn through divine revelation or by having knowledge poured into them, that will inform your interactions in a different way from if you think that they learn through conjectures and refutations: you may well think coercion necessary.