A proper education comes when you put pupils in a room with a very smart person and let them question him. He answers their questions and introduces them to new ideas. Pupils guide the learning, tutors are just a resource. There are no lesson plans.
This is how the great thinkers have learned and taught since the dawn of man. This is how the wealthy and in-the-know still educate themselves.
When public school was demanded, the educated upper class thought it abhorrent and dangerous to give poor children this kind of free-form, liberating education. They invented "public education" and modeled it after church education where students are preached to and rigidly controlled.
Church is a place where poor people go to be controlled. Public school extended this control programming to the formative years of all the children of the non-elite. Everything in public schools is optimized to create obedience, unthinking, conformity, rigidity.
Tell me one thing you learned from a lesson plan that did you any good. All the great thinkers, today and in the past, learned by directing themselves and (ideally) questioning smart people. Never by being whipped into doing lesson plans, always by following their creativity and doing investigations and self-directed projects.