The Ledger
Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.
why aren't all 12 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable
Oakley: Research Shows Visual and Auditory Learning Styles Are Scientifically Groundless
“There was a excellent study done by a woman named Beth Rogoski and what she did was she took one of the standard tests to kind of analyze a very widely used test that is used to distinguish an individual as to whether they're a visual learner or an auditory le…”
Oakley: US ranks dead last in student math ability among 22 OECD nations
“I think we're dead last in the group of 22 top nations in the OECD as far as the math Abilities of our students.”
Oakley's $5,000 basement course matched Harvard's entire online course enrollment
“Our one little course that was made for less than 5000 dollars, mostly in my basement had on this order the same number of students as all of Harvard's online courses put together, made for millions of dollars with hundreds of people.”
Oakley: Neuroscience proves math mastery requires practice and repetition
“When it comes to math, it's like, ah, let's not talk about how the neuroscience supports the fact that you also need practice and repetition for math, because it, then you start getting into the math wars.”
Oakley: Karpicke study shows active recall outperforms rereading and concept mapping
“There's a great study by Jeff Karpicki of Purdue about where he showed what is the best way to learn if you're reading, for example, a complex paper on some scientific study or subject. The best way is you read it, and then you look away, and you can, you see …”
Oakley: Human working memory holds roughly four slots, not seven
“We used to think there are seven slots in working memory, so it's like seven things you can hold in mind. Like seven numbers. That's why, you know, it was four, five, three, seven, two, three, nine, or whatever phone number had seven digits in it, because they…”
Oakley: Formal education systems rarely teach students how to learn effectively
“People can go through 12 to 16 years of education and never have a single course in how to learn effectively.”
Oakley: Neural reuse theory proves metaphors activate complex concept mechanisms
“Neural reuse theory shows that you're actually activating those same mechanisms for the metaphor that you would for the underlying difficult concept you want to try to convey.”
Oakley: Anticipating unpleasant tasks activates the brain's pain centers
“What happens when you even just think about something you don't want to do or don't like, It activates a portion of the brain in the insular cortex that experiences pain.”
Oakley: Exercise promotes neural growth by stimulating BDNF production
“What exercise does is it helps produce Brain derived neurotropic factor in your, you know, in your brain. And this is kind of like a fertilizer that helps dendritic spines grow. In other words, it helps make new connections.”
Oakley: Contemplating unpleasant tasks activates the brain's pain center
“What happens when you even just think about something you don't want to do or don't like, It activates a portion of the brain in the insular cortex that experiences pain, so it's kind of like that same feeling you get in the pit of your stomach when you don't …”
Oakley: Exercise produces BDNF, stimulating dendritic spine growth and learning
“What exercise does is it helps produce
Brain-derived neurotropic factor in your, you know, in your brain, and this is kind of like a fertilizer that helps dendritic spines grow.
In other words, it helps make new connections.”