We have learned a lot throughout history about what works and what does not work when educating children. And to learn. Testing things to see what works and what doesn't work. But all this knowledge, which is what is the core of what the teacher teaches and in education systems, is not constrained in the machine that generates it, which is the brain. We have a dissociation between education and neurobiology. Obviously, they must be connected. Because if a child learns, something has changed in their brain. There must be some change, but we do not know the exact relationship.
From my personal experience of learning, I always feel that what has most affected me in my education has been personal contact with a teacher. That is, one to one. The inspiration of a specific person you know, talk to and relate to. I always think that the ideal way to learn is one to one. What I do sometimes is prepare a tutoring plan, where every student, every week, has to write an essay on a subject, I correct it and I sit with the student and discuss it. This is how they teach at Cambridge and Oxford. Motivation is also fundamental, using question-based classes when you have a large group. In my personal experience, I think a direct approach is best. Personal contact, direct inspiration. Encourage them. And to be emotionally involved. Our brain has emotional components that are anchored in the functioning of the nervous system. We cannot dissociate. And emotional components help you learn. Repetition helps you learn because neural circuits are supposed to reactivate and become stronger. And being emotionally involved also helps.