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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.
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]
Full Transcript
- 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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