Mark Zuckerberg on Taking Risks and Finding Talented People

All the glaciers are shrinking. In the 1800s, they were estimated to be about 150 glaciers here; however, today we only have 25 glaciers. The glaciers are measured by a number of different ways. One of the most obvious ones is using repeat photography, wh…

What’s up you guys, it’s Graham here. So, if you’re not already aware, I read all of the comments—literally every single one of them without fail—because I don’t have a life. So, if you comment something, I read it. Now, part of the reason that I do this…

As part of his ivory trafficking investigation, Brian Christie has led to a small West African port in L Togo where the largest African ivory seizure in over a quarter century was recently discovered by Lieutenant Kier A. One of the men arrested at the sc…

Let’s talk about multiplying by 10, 100, and 1,000. There’s some cool number patterns that happen with each of these, so let’s start here with something like 4 * 10—one that maybe we’re comfortable with or already know. 4 * 10 would be the same as saying…

Okay, stop, stop, stop, stop! They’re right there! Right? My sister Joyce and myself, we’re driving to the park, hoping that the elephants here won’t try to hit us. Uhoh, look at the size of this guy on the left! We’re trying to show these elephants that …

Hi everyone! Welcome to the Khan Academy homeroom. For those who are wondering what this is, this is just a forum for all of us to stay together, especially since it was started when schools closed. Obviously, summer has arrived, and I announced that scho…