Safari Live - Day 121 | National Geographic

Hi everyone! Welcome to our daily live stream. This is something that we started about two months ago, really to stay in touch during times of social distancing and physical school closures. Obviously, we’ve been trying to do a lot of other things, but we…

What we’re going to do in this video is start to compare distributions. So for example, here we have two distributions that show the various temperatures different cities get during the month of January. This is the distribution for Portland; for example,…

Alejandro was curious if sample median was an unbiased estimator of population median. He placed ping-pong balls numbered from zero to 32 in a drum and mixed them well. Note that the median of the population is 16. He then took a random sample of five bal…

We are asked how many proportional relationships are shown in the coordinate plane below, and we have the choices. But let’s actually look at the coordinate plane below to think about how many proportional relationships are depicted here. So pause this vi…

Alright guys, welcome back! It’s time for an update video on Evergrande. I told you it would be a crazy week, and it certainly was. However, Evergrande is still standing, at least for now. So let’s get up to speed on exactly where Evergrande is at with th…

What we’re going to do in this video is learn to construct congruent angles. And we’re going to do it with, of course, a pen or a pencil. Here, I’m going to use a ruler as a straight edge, and then I’m going to use a tool known as a compass, which looks a…