Sal Khan Educator and social entrepreneur. TED Speaker. In , Sal Khan, a hedge fund analyst, began making math tutorials for his cousins. Twelve years later, Khan Academy has more than 42 million registered users from countries, with tutorials on subjects from basic math through economics, art history, computer science, health, medicine and more.
Why you should listen Salman "Sal" Khan is the founder and chief executive officer of Khan Academy, a not-for-profit with a mission of providing a free, world-class education for anyone, anywhere.
Sal Khan Let's use video to reinvent education Posted Mar Salman Khan at Rice University's commencement. Authors Google: Salman Khan. Khan Academy Vision and Social Return. The learning myth: Why I'll never tell my son he's smart. Next lesson. Current timeTotal duration Google Classroom Facebook Twitter. Video transcript I'm here today to talk about the two ideas that, at least based on my observations at Khan Academy, are kind of the core, or the key leverage points for learning.
And it's the idea of mastery and the idea of mindset. I saw this in the early days working with my cousins. A lot of them were having trouble with math at first, because they had all of these gaps accumulated in their learning. And because of that, at some point they got to an algebra class and they might have been a little bit shaky on some of the pre-algebra, and because of that, they thought they didn't have the math gene.
Or they'd get to a calculus class, and they'd be a little bit shaky on the algebra. I saw it in the early days when I was uploading some of those videos on YouTube, and I realized that people who were not my cousins were watching. Laughter And at first, those comments were just simple thank-yous.
I thought that was a pretty big deal. I don't know how much time you all spend on YouTube. Most of the comments are not "Thank you. But then the comments got a little more intense, student after student saying that they had grown up not liking math.
It was getting difficult as they got into more advanced math topics. By the time they got to algebra, they had so many gaps in their knowledge they couldn't engage with it. They thought they didn't have the math gene. But when they were a bit older, they took a little agency and decided to engage.
They found resources like Khan Academy and they were able to fill in those gaps and master those concepts, and that reinforced their mindset that it wasn't fixed; that they actually were capable of learning mathematics.
And in a lot of ways, this is how you would master a lot of things in life. It's the way you would learn a martial art.
In a martial art, you would practice the white belt skills as long as necessary, and only when you've mastered it you would move on to become a yellow belt. It's the way you learn a musical instrument: you practice the basic piece over and over again, and only when you've mastered it, you go on to the more advanced one. But what we point out -- this is not the way a traditional academic model is structured, the type of academic model that most of us grew up in.
In a traditional academic model, we group students together, usually by age, and around middle school, by age and perceived ability, and we shepherd them all together at the same pace. And what typically happens, let's say we're in a middle school pre-algebra class, and the current unit is on exponents, the teacher will give a lecture on exponents, then we'll go home, do some homework.
The next morning, we'll review the homework, then another lecture, homework, lecture, homework. That will continue for about two or three weeks, and then we get a test. On that test, maybe I get a 75 percent, maybe you get a 90 percent, maybe you get a 95 percent. And even though the test identified gaps in our knowledge, I didn't know 25 percent of the material.
Even the A student, what was the five percent they didn't know? Even though we've identified the gaps, the whole class will then move on to the next subject, probably a more advanced subject that's going to build on those gaps. It might be logarithms or negative exponents. And that process continues, and you immediately start to realize how strange this is.
I didn't know 25 percent of the more foundational thing, and now I'm being pushed to the more advanced thing. And this will continue for months, years, all the way until at some point, I might be in an algebra class or trigonometry class and I hit a wall. Current timeTotal duration Google Classroom Facebook Twitter. Video transcript In honor of digital learning day, I thought I would do a video on at least how I view how digital materials in software can be used in conjunction with a physical experience.
And this idea is typically called blended learning. There are four million unique users most of them that are using it have a traditional experience and they are using it as a supplement. Maybe they missed some days in school or maybe they needed more reinforcement or maybe right before the exam, they wanted to review the material. And I want to highlight the fact, and this isn't our idea, although it's associated with us, but there are some huge advantages that happen in here.
What is is that at least in my mind, this is where a lot of the learning happens Where students are learning problems, they are engaging with it, they are actively thinking about it. But the problem with doing it at home is when students get stuck. When they don't have an older sibling, or a parent to help them, they just kind of flail around, they don't get feedback about how they are doing.
There is also a problem with the traditional lecture in the classroom. In the traditional lecture in the classroom it is one pace for the entire classroom If the student doesn't remember something from a few years ago, she is probably embarassed to bring it about And even if she brings it about, it might not even be appropriate for most of the classroom There is no chance to pause and repeat A lot of times, especially in college, students spend more time taking notes than actually trying to pay attention and understand the material What happens when you put the lecture on demand at home: now students will be able to watch it when they are ready for it When they are ready to be engaged with it, not 7 in the morning when they maybe didn't get proper sleep Their mind is wondering on other things Probably more important about is that they can review thigns that they would be embarassed, or maybe there isn't even time to cover in the class.
If you are an 8th grader and you are little fuzzy on multiplying decimals, there isn't an outlet for you in the traditional one-pace-fits-all classroom, but now there is. You can go watch all those lectures, to make sure you understand what is going on.
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