Mark Zuckerberg on Taking Risks and Finding Talented People
And just to make this point, how far into Facebook did it actually become a company? Um, I don’t know. I think probably it
More Articles
View AllIntro to adjectives | The parts of speech | Grammar | Khan Academy
So grammarians, we have this class of words called adjectives, and what they do is they change stuff. Adjectives change stuff. Adjectives change stuff. They’re part of this larger category of words that we call modifiers because that’s what they do. They …
Solo Escape from Iraq | No Man Left Behind
I was a 28-year-old guy loving life and everything else. And uh, I was in the Special Air Service. I can remember flying in; the first thing that came over the headset was the pilot saying, “Welcome to Iraq.” From that point, a new game was on. The 8-man …
Recognizing fragments | Syntax | Khan Academy
Hello grammarians! David here along with my cousin Beth, who also happens to be a teacher. Say hello to the people, Beth.
“Hi, people!”
So today we are going to talk about sentence fragments. Beth, you cover these in classes that you teach. Could you te…
Multiplication on the number line
What we’re going to do in this video is think about different ways to represent multiplication, and especially connect it to the notions of skip counting and the number line.
So, if we were to think about what 4 times 2 means, we’ve already seen in other…
Schlieren Imaging in Color!
A few months ago, I made a video about Schlieren imaging. Now that’s a technique used to visualize tiny differences in air, either temperature, pressure, composition, so you can see things like the heat that comes off when you light a match.
Now, in that…
Proving triangle congruence | Congruence | High school geometry | Khan Academy
What I would like to do in this video is to see if we can prove that triangle DCA is congruent to triangle BAC.
Pause this video and see if you can figure that out on your own.
All right, now let’s work through this together. So let’s see what we can fi…