Mark Zuckerberg on Taking Risks and Finding Talented People

Let’s do some example questions dealing with ratios. So we’re told the table shows the number of people waiting in line for different rides at an amusement park. So, 15 people are waiting in line for the roller coaster, four people for the slingshot, 12 …

Being confirmed as a finalist, nothing like this has ever happened to me before in my life. I still can’t believe I made it to this point. I can only hope that my photographs give people a sense of who I am. My name is Nina Ritchie, and I live in Chinle,…

So let’s see how we could approach 4 and 1⁄4 minus 2 and 2⁄4. Pause this video and have a go at that before we work on this together. All right, so the first thing that you might try to do is rewrite this as 4 and 1⁄4 minus 2 and 2⁄4. The reason why it’s…

What does period and frequency mean? The period is the number of seconds it takes for a process to complete an entire cycle, circle, or revolution. So, if there’s some repeating process, the time it takes that process to reset is the period, and it’s mea…

From Mexico all the way to Alaska, there has been a massive die-off of sea stars. The estimates are in the tens to hundreds of millions of sea stars that have died in the last couple of years. It’s one of the largest mortality events associated with a dis…

This program features live coverage of an African safari and may include animal kills and carcasses. Viewer discretion is advised. The clouds are now starting to come close to each other; I can see that it might be overcasting any time soon here by the we…