When he reviewed studies of learning styles, he found no scientific evidence backing up the idea. "We have not found evidence from a randomized control trial supporting any of these," he says, "and until such evidence exists, we don't recommend that they be used." Willingham suggests it might be more useful to figure out similarities in how our brains learn, rather than differences. And, in that case, he says, there's a lot of common ground. For example, variety. "Mixing things up is something we know is scientifically supported as something that boosts attention," he says, adding that studies show that when students pay closer attention, they learn better.