Why the metric system matters – Matt Anticole | metrics แปลว่า

Why the metric system matters – Matt Anticole


นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูความรู้เพิ่มเติมที่นี่

View full lesson: http://ed.ted.com/lessons/whythemetricsystemmattersmattanticole
For the majority of recorded human history, units like the weight of a grain or the length of a hand weren’t exact and varied from place to place. Now, consistent measurements are such an integral part of our daily lives that it’s hard to appreciate what a major accomplishment for humanity they’ve been. Matt Anticole traces the wild history of the metric system.
Lesson by Matt Anticole, animation by Globizco.

Why the metric system matters - Matt Anticole

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Unit Conversion \u0026 The Metric System | How to Pass Chemistry


Learn some helpful tricks on how to remember the metric system, and practice what you just learned to ace your exam! This video helps you understand how to use the metric system as a conversion factor to convert units and helps you stop guessing for good!
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Unit Conversion \u0026 The Metric System | How to Pass Chemistry

Metric system: units of weight | 4th grade | Khan Academy


Let’s jump into the world of metric weight measurement! Nice to meet you, milligram. You, too, gram and kilogram. Let’s get to know each other.
Watch the next lesson: https://www.khanacademy.org/math/ccfourthgrademath/cc4thmeasurementtopic/cc4thuscustomaryunits/v/uscustomarydistance?utm_source=YT\u0026utm_medium=Desc\u0026utm_campaign=4thgrade
Missed the previous lesson? https://www.khanacademy.org/math/ccfourthgrademath/cc4thmeasurementtopic/cc4thmetricuscustomary/v/metricunitsweight?utm_source=YT\u0026utm_medium=Desc\u0026utm_campaign=4thgrade
Grade 4th on Khan Academy: 4th grade is the time to start really finetuning your arithmetic skills. Not only will you be a multidigit addition and subtraction rockstar, but you’ll extend the multiplication and division that you started in 3rd grade to several digits. You’ll also discover that you sometimes have something left over (called a \”remainder\”) when you divide. In 3rd grade you learned what a fraction is. Now you’ll start adding, subtracting, multiplying, and comparing them. You’ll also see how they relate to decimals. On other fronts, you’ll learn how to convert between different units (which is super important when comparing the size and speed of robot unicorns in different countries) and continue your journey thinking about various shapes in two dimensions. Some of the foundational concepts of geometry (like lines, rays and angles) also get introduced. As always, we’ll round this out with a healthy dose of applied word problems and explorations of number patterns and properties (including the ideas of factors, multiples and prime numbers). The fun must not stop! (Content was selected for this grade level based on a typical curriculum in the United States.)
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using stateoftheart, adaptive technology that identifies strengths and learning gaps. We’ve also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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Metric system: units of weight | 4th grade | Khan Academy

Where do math symbols come from? – John David Walters


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View full lesson: https://ed.ted.com/lessons/wheredomathsymbolscomefromjohndavidwalters
Math is full of symbols: lines, dots, arrows, English letters, Greek letters, superscripts, subscripts … it can look like an illegible jumble. Where did all of these symbols come from? John David Walters shares the origins of mathematical symbols, and illuminates why they’re still so important in the field today.
Lesson by John David Walters, directed by Chris Bishop.
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Where do math symbols come from? - John David Walters

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