" 'We have known these principles [for improved study] for some time, and it's intriguing that schools don't pick them up, or that people don't learn them by trial and error,' said Robert A. Bjork, a psychologist at the University of California, Los Angeles. 'Instead, we walk around with all sorts of unexamined beliefs about what works that are mistaken.' (...)
Take the notion that children have specific learning styles, that some are 'visual learners' and others are auditory; some are "left-brain" students, others "right-brain." In a recent review of the relevant research, published in the journal Psychological Science in the Public Interest, a team of psychologists found almost zero support for such ideas. (...)
Cognitive scientists do not deny that honest-to-goodness cramming can lead to a better grade on a given exam. But hurriedly jam-packing a brain is akin to speed-packing a cheap suitcase, as most students quickly learn - it holds its new load for a while, then most everything falls out. ... [In contrast] an hour of study tonight, an hour on the weekend, another session a week from now - so-called spacing - improves later recall without requiring students to put in more overall study effort or pay more attention, dozens of studies have found."