yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Measure lengths to nearest 1/4


2m read
·Nov 10, 2024

  • [Instructor] We are asked, what is the height of the sunflower? So pause this video and think about it.

All right, so let's see. The bottom of the sunflower is right aligned with the bottom of the ruler, so the ruler's in the right place. And let's see, the sunflower goes all the way up to this point right over here. So this is one, two, three, four, five, and then a little bit more. So we're going to get into a fraction.

So what is this extra amount? So if we can see, the space between five and six is divided into four equal sections. So we have one, two, three, four. Or we could see it here. They've divided it with these little hash marks into one, two, three, four equal sections. And this goes one of those four equal sections towards six, so this is 5 1/4 feet. That's how tall the sunflower is.

All right, let's do another example. So here we are told, or we are asked, which pencil measures 2 3/4 of an inch? So pause this video and try to think about it.

All right, so we go one inch, two inches, and then we have to think about how far between two and three is 3/4? So to think about 3/4, we have to divide the part, or the part of this ruler, between two and three into four equal sections.

So let's see. If I were to just split it like this, that's two equal sections. So if I were to take each of those two equal sections and then split them, now that's four equal sections. Notice one, two, three, four equal sections. So when we're thinking about 3/4, we wanna go three of those four equal sections. One, two, three. And so you can see right over here, that is 2 3/4. This is 2 3/4 right over here. And that is pencil A.

More Articles

View All
Should This Lake Exist?
This is the largest body of water in California. It is about 25 kilometers wide by 55 kilometers long. You can’t even see the other end of this lake. And it is home to the most diverse number of birds anywhere in the continental US besides Big Bend in Tex…
Origins of agriculture | World History | Khan Academy
This timeline here covers 200,000 years, from 200,000 years into the past to the present. Just to get a sense of the scale of this, if we were to go 2,000 years ago to the time of the Roman Empire, that would be roughly here on the timeline. If I were to …
Schopenhauer: The Philosopher Who Knew Life’s Pain
When Arthur Schopenhauer was walking his poodle, he looked at the world with sadness. He saw humans and animals struggling to survive in a world they never chose to be in. And from the day they were born, the suffering only worsened as they contracted dis…
How Wildlife Is Bouncing Back In This African Park | National Geographic
Love, love, passion! Show up! That is easy for you to become a ranger. When I came here in 1993, there was no animals. My jet air was empty before tourism, before bringing animals, before everything. There’s a need for a team to protect my Jetta. I remem…
Cellular respiration | Food and energy in organisms | Middle school biology | Khan Academy
So, let’s say I was preparing to go on a long hike. Besides packing water, dressing for the weather, and mapping my route, I’d probably also want to eat a snack before leaving to make sure I have enough energy for the hike. We, as humans, need food to nou…
Definite integral properties (no graph): breaking interval | AP Calculus AB | Khan Academy
We’re given that the definite integral from one to four of f of x dx is equal to six, and the definite integral from one to seven of f of x dx is equal to eleven. We want to figure out the definite integral from four to seven of f of x dx. So, at least i…