Does preschool help?

http://www.theatlantic.com/magazine/archive/2016/01/the-new-preschool-is-crushing-kids/419139/

Do learning styles exist?

http://qz.com/568617/you-may-think-you-learn-better-in-a-certain-way-you-actually-dont/

http://qz.com/585143/the-concept-of-different-learning-styles-is-one-of-the-greatest-neuroscience-myths/