There was a mathematician named R.L. Moore. He was an influential point-set topologist, but he's influential outside the realm of topology because of his teaching style. Briefly, the professor gives out definitions, axioms, and statements of theorems (as well as non-theorems) in class. The members of the class work out the theorems, important examples, and counterexamples to non-theorems on their own, and then present their results to the rest of the class.
I'm an introvert. I hate group projects. For one I find being with people mostly draining, but for another I always did the lion's share of the work. But I love Moore-style classes. I'm not afraid of presenting, and I felt I learned better working everything out on my own.
I'd love to see education move away from group projects and learning activities in favor of guided self-instruction (with accountability in the form of presentations or tests.) The introverts can work in their own solitary, contemplative fashion, and the extroverts can form study groups as they see fit. If the class isn't suitable for presentations, then something closer to a flipped classroom is IMO ideal.
Caveat: In my experience as both a student and an instructor this works best at the sophomore level of college and higher or graduate school.