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Math 4: Converting Measurements 211 Views


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Description:

We're going to start off with a murder mystery involving King Henry and chocolate milk, but just stick with us. We definitely absolutely know what we're doing. Usually. 

Language:
English Language

Transcript

00:02

[Dino and Coop singing]

00:13

All right, metric converters, buckle up, because we're about to serenade you with a tale that'll [Girl sat in a chair with a seatbelt]

00:18

help you become a metric converting maestro! [Another girl sat in a chair playing a guitar]

00:22

This is King Henry.

00:24

One day, he was riding his horse around his land when he got super hot and thirsty. [King Henry on a horse]

00:27

He decided to stop and take some icy-cold gulps of his favorite beverage: chocolate milk. [King Henry arrives at the chocolate milk stand]

00:33

Suddenly, a giant acorn fell from the tree King Henry was resting under. [The giant acorn hits King Henry on the head]

00:37

It hit him so hard that he died!

00:39

Whoa.

00:40

Okay….wasn't expecting that….

00:42

Then a giant squirrel took the giant acorn away, removing all evidence of the cause of

00:46

King Henry’s demise. [Giant squirrel walking away with the acorn]

00:48

Thusly, when the King’s knights found him, there was no clear explanation for what had [Knight arriving]

00:52

happened.

00:53

The mysterious death baffled all the kingdom.

00:56

The next day, the paper’s headline read:

00:57

“King Henry Died Unexpectedly Drinking Chocolate Milk.” [Newspaper]

01:01

And thus, we were given the key for converting any metric measurement!

01:04

….Wait. What?

01:05

What just happened…?

01:06

Uh…

01:07

Let's back up and try to explain that crazy story. [Man cheers and video game style acheivment appears]

01:09

Remember, the metric system is a scale of measurement that is based on a scale of tens.

01:14

With that scale, we can easily convert between any measurements. [Dino pointing at a blackboard]

01:17

And as it turns out, that headline about ol’ King Henry’s untimely demise can help us, too.

01:22

Check it out.

01:23

Look closely, because the first letter of each word in that sentence represents a prefix [Each first letter of the words in the newspaper headline is highlighted]

01:28

of the metric system.

01:29

When we want to convert measurements with that sentence, all we do is count how far

01:33

away the two units are from each other in that sentence, and move the decimal point [Fingers counting along]

01:37

that many spaces.

01:38

Let’s say the late King’s Official Master of Chocolate Milk was taking inventory for [The 'Master of Chocolate Milk' holding a scroll]

01:43

the sake of the King’s will, and had a three-liter barrel of chocolate milk, which he wanted

01:47

to record as milliliters.

01:49

Let’s look at our sentence, again…

01:51

We start at the “U”, because “liter” is one of our base units…as would be meter,

01:57

or grams…

01:58

We move to the “M” in “Milk” for milliliters and find that we’ve moved over three spaces [An arrow shows the 3 spaces in the acronym]

02:03

– or three decimal points, giving us 3,000!

02:06

So, the King’s Master of Chocolate Milk has discovered that the King’s family will

02:10

be inheriting 3,000 milliliters of chocolate milk!

02:13

“King Henry Died Unexpectedly While Drinking Chocolate Milk” turns out to be a pretty [King Richard and Henry's gravestones]

02:17

math-free way of doing some math.

02:19

Of course, it’s more emotionally trying if you happened to have been close to King [Knight arrives at the grave]

02:23

Henry… so sad… so unexpected...

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