Most cultures who developed metalworking technology never let the skill go to waste. But in what's now Michigan, Native Americans started making metal tools well before anyone else did, and then stopped. And the reason why this happened is hiding in the very metal that they were working: Copper. Thanks to Alexis Dahl for joining us on this episode. Check her out on YouTube here: https://www.youtube.com/alexisdahl

If you want to learn more about SciShow Rocks Box, head over to complexly.store/rocks

Hosted by: Savannah Geary (they/them) and Alexis Dahl (she/her)

----------
Support us for $8/month on Patreon and keep SciShow going!
https://www.patreon.com/scishow
Or support us directly: https://complexly.com/support
Join our SciShow email list to get the latest news and highlights:
https://mailchi.mp/scishow/email
----------
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Eric Jensen, David Johnston, Alan Wong, Cye Stoner, Bethany Matthews, Adam Brainard, Friso, Matt Curls, Chris Mackey, Garrett Galloway, J.V. Rosenbalm, Toyas Dhake, Reed Spilmann, Jeremy Mattern, Jaap Westera, Chris Curry, Blood Doctor Kelly, Lyndsay Brown, Kevin Bealer, Piya Shedden, Joseph Ruf, Steve Gums, Jason A Saslow, Kevin Knupp, Alex Hackman, Chris Peters
----------
Looking for SciShow elsewhere on the internet?
SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/
TikTok: https://www.tiktok.com/@scishow
Instagram: http://instagram.com/thescishow
Facebook: http://www.facebook.com/scishow
Bluesky: https://bsky.app/profile/scishow.bsky.social

#SciShow #science #education #learning #complexly
----------
Sources: https://docs.google.com/docume....nt/d/e/2PACX-1vTdShY

How to Add Three Fractions? Basic Math Review
Visit our new fb page: www.facebook.com/MathTutorialsforFree/

Civil Service Examination Reviewer Playlist:
Solving Age Problems PART 1 - Civil Service Exam
https://youtu.be/FZmZUaet3Ig
How to Solve Age Problems (Part 2) - Civil Service Exam - LET Exam
https://youtu.be/738Xx0qfX2E
Number Series - Math Reviewer - Civil Service Exam and LET
https://youtu.be/TfvN_NSbfdk
Order of Operations - PEMDAS - Civil Service Exam & LET Reviewer
https://youtu.be/pfnctEEWuuM
How to Solve Word Problems in Ratio and Proportion
https://www.youtube.com/watch?v=TrunSSuYrAg
How to Solve Number Problems? | Civil Service Exam - LET
https://youtu.be/95dGkfHGWT0
Percentage Hacks! How to Get the Percentage of a Number?
https://youtu.be/h8yfFXq-pCI

#fractions
#fraction
#akositeachergon
#civilserviceexam

Scientists have found amino acids (the building blocks of life) inside the Bennu asteroid samples, hinting that the ingredients for life on Earth's may not be so unique in the universe after all!

Join us on Patreon!
https://patreon.com/itsokaytobesmart

Instagram
http://www.instagram.com/DrJoeHanson
http://www.instagram.com/okaytobesmart

Facebook
https://www.facebook.com/itsokaytobesmartpbs/

Explore the DESI universe map here: https://newscenter.lbl.gov/202....4/04/04/desi-first-r

Another YouTube #shorts from Dr. Joe! Subscribe for more fun science stories.

Join us on Patreon!
https://patreon.com/itsokaytobesmart

Instagram
http://www.instagram.com/DrJoeHanson
http://www.instagram.com/okaytobesmart

Facebook
https://www.facebook.com/itsokaytobesmartpbs/

How to find LCD
1. https://youtu.be/KYv7QmJutUs
2. https://youtu.be/9z6iZOu0kK4
3. https://youtu.be/JqdKwWXNeSE

For more FRACTIONS, search ganito:
"fraction Leonalyn"


Paano Mag SELF REVIEW | Sekreto para PUMASA:
1. https://youtu.be/cY9WMaMmaKk
2. https://youtu.be/SiZFsdcvSqw

Paano e turn OFF ang annoying SUBTITLE:
https://youtu.be/ID2YekF5Ka4

You can SHARE the LINK of my videos but DO NOT re-upload.

FB Page:
Free Civil Service Reviewers managed by Leonalyn
https://www.facebook.com/Leona....lynMutiaTayoneFreeRe

FB Group:
Philippine Civil Service Review for all
https://www.facebook.com/group....s/121644125187853/?r

Huwag nyong lagyan ng SUBTITLE mga videos ko para makapanood kayo ng buo at walang sagabal. Watch this kung paano:
https://youtu.be/ID2YekF5Ka4

Behind the scene:
https://youtu.be/qJgEzWnDp_8

Editing Apps: VivaVideo
SamsungNote5: Snote
Back-up: SamsungNote9

Solving Math Problems for:
AFPSAT AQE SWE MATH CIVIL SERVICE EXAM
UPCAT LET PNPACAT PMA NCAE NAPOLCOM College Entrance Test DOST PMAEE

Educational video for children to learn what is a tsunami. Tsunamis are gigantic waves that sweep away everything in their path when they reach land. Tsunamis occur for different reasons, such as an earthquake or a volcanic eruption on the ocean floor. Sometimes tsunamis originate at one point in the world and travel hundreds of miles, affecting countries far away from the starting point.

This is a video resource that compiles information about tsunamis, it is ideal for elementary school natural science.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

If you like our videos, download Smile and Learn now. You’ll discover thousands of activities for children aged 3 to 12 years, all designed by educators. We have hundreds of games, interactive stories and videos in five languages: English, Spanish, Portuguese, Italian, Turkish and French. Try a month for free and start the adventure!

www.smileandlearn.com

...and other Christmas mysteries answered with science!
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub

Happy Holidays! Ever wonder how Santa could possibly manage to deliver all those presents in a single night? Or what gives red-nosed reindeer the ability to fly? And why do your Christmas lights get tangled in knots no matter how carefully you put the away?!

Here's some Christmas-themed science, as our gift to you. See you in 2015!

SOURCES:
Why Christmas lights tangle: "Spontaneous knotting of an agitated string" http://www.pnas.org/content/104/42/16432

Apollo 8 "Santa sighting" https://archive.org/details/Apollo8Highlights

Santa's reindeer are probably female: http://www.livescience.com/321....49-are-santas-reinde

Reindeer hair is hollow and "buoyant" http://www.ncbi.nlm.nih.gov/pubmed/6150798

Reindeer really do have red noses: http://www.bmj.com/content/345..../bmj.e8311.full.pdf+

Reindeer eyes change color: http://phenomena.nationalgeogr....aphic.com/2013/10/29

Santa's challenge (check my math!): http://bit.ly/1sOW15q

Produced for PBS Digital Studios

Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen Inc
Kate Eads - Associate Producer
Andrew Matthews - Editing/Motion Graphics
Katie Graham - Director of Photography
John Knudsen - Gaffer
Dalton Allen - Post-Production Intern

Theme music:
"Ouroboros" by Kevin MacLeod

-----------
Join us on Patreon!
https://patreon.com/itsokaytobesmart

Twitter
http://www.twitter.com/DrJoeHanson
http://www.twitter.com/okaytobesmart

Instagram
http://www.instagram.com/DrJoeHanson
http://www.instagram.com/okaytobesmart

Merch
https://store.dftba.com/collec....tions/its-okay-to-be

Facebook
https://www.facebook.com/itsokaytobesmartpbs/

Video to help young learners discovers the letter "s". They’ll have fun learning how it sounds, how to write it, and words that start with it.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

This video is part of a series of videos for young learners to work on the alphabet. Each video focuses on a letter, in this case the letter "s". Children learn how it sounds and how to write it. The video goes over words that start with the letter to check its sound and there’s a sing-a-long to practice!

Why is it good for children to see Smile and Learn’s videos?

+We only upload our own content, designed by educators so that children smile and learn while watching a video.

+All of our content reinforces educational values, encouraging the use of multiple intelligences and language learning.

*If you like our videos, download “The Smart Library” now. You’ll discover more than 30 interactive games and stories for children designed by educators. The stories are based on VALUES like friendship, respect, and generosity, and our games cover all of the MULTIPLE INTELLIGENCES. All our content is in SPANISH, ENGLISH, and FRENCH.

The perfect tool to use in and out of school.

Download it today!

-Apple Store: http://bit.ly/Biblioteca_Inteligente_...

-Google Play: http://bit.ly/Biblioteca_Inteligente_...

For more information, visit our website: https://smileandlearn.net/

If you want the latest news and new stories or games:
Follow us on:
+Facebook: https://www.facebook.com/Smileandlearn
+Instagram: https://www.instagram.com/smileandlea...
+Twitter: https://twitter.com/smileandlearn
+Pinterest: https://es.pinterest.com/smileandlearn/

Thank you for trusting us with your children's education!

This video is a virtual math worksheet (extra practice) for finding the circumference of a circle. I give you 4 examples to work on your own and check against my answers. This video gives 2 examples with the radius known and 2 examples with the diameter known.


🔴 Subscribe for more free YouTube tips: https://www.youtube.com/c/ImprovedMath

🔴 Share this video with a friend: https://youtu.be/d5cKemfV38c


✅ For business inquiries contact me at improvedmath@gmail.com

✅ Let's connect:

https://www.youtube.com/c/ImprovedMath

https://www.tiktok.com/@improvedmath1?

https://www.pinterest.com/improvedmath/


Improved math is a channel created to provide additional instruction on essential math concepts. I’m passionate about math and I know first-hand how important math concepts are in the real world.

Teachers, parents, guardians, homeschoolers, and students can use these videos to help reinforce math skills. These math videos are designed to help teach yourself math or provide self-study math tools to assist when additional instruction is needed. Teaching math and learning math has changed the way many students learn in this virtual environment and during the pandemic. Having on-demand math videos can provide math tutoring needed when children are not able to get help from their teachers after school hours or when trying to do math at home.

The library of math tutorials that I create can also be used as supplemental instructional material for homeschool math. Each full-length video comes with a subsequent knowledge check or math practice problems which serve as a virtual math topic worksheet to test your understanding of each skill. These videos can be paused to work out the problems on your own, then unpaused to check your answers. All of these videos can be found under the Knowledge Check playlist.

I also have a library of shorter videos (less than 1 minute in length - shorts) that are quick math tips and tricks on basic math topics. Some of these short math help videos include problems that you can work on yourself and submit your answers in the comments. They are all listed under my Math Tips and Tricks playlist.

Improved math is creating more videos every day to cover topics from 4th grade, 5th grade, 6th grade, and 7th-grade math. The videos focus on fractions, basic math operations, geometry, and ratios but more topics are being added all the time. If there is a specific topic you would like to see covered, drop me a comment in one of my videos and let me know!

Free math help videos will be posted every Thursday and Friday. For additional math resources, check out my math help website at improvedmath.com where I post math worksheets and answers along with additional context on math basics.


Thanks for watching my channel.

This video shows 4 examples of simplifying ratios with whole numbers as additional practice for mastering the concept. The steps to reducing ratios to their lowest form are listed and include: finding factors of all ratio numbers, finding the greatest common factor, and dividing the ratio numbers by the greatest common factor.

The video encourages the watcher to pause the video in the beginning and try the examples for themselves. Then they can check their work against my answers.

For more help on simplifying ratios, check out my tutorial video here: https://youtu.be/mhcIH3iKKmE

For more help on finding factors and the greatest common factor, check out my video here: https://youtu.be/RaWciR9iyyU


Improved math is a channel created to provide additional instruction on essential math concepts. I am passionate about math and I know firsthand how important math concepts are in the real world.

Teachers, parents, guardians, homeschoolers, and students can use these videos to help reinforce math skills.

For more information on math topics or for free printable worksheets and answer sheets, you can also visit my website at improvedmath.com

#mathhelp
#simplifyingratios
#factors
#greatestecommonfactor
#reducingratios
#mathpractice
#simplifyingratiosworksheet
#mathvideos



https://www.youtube.com/c/ImprovedMath

https://improvedmath.com

https://www.tiktok.com/@improvedmath1?

https://www.pinterest.com/improvedmath/


Don’t forget to like, share, and subscribe!

Much like a cell membrane, our atmosphere forms a protective boundary between outer space and the biosphere that allows for all life to exist on Earth’s surface. Today, we’re going to talk about its composition and layers (the troposphere, stratosphere, mesosphere, and thermosphere), follow the path of a sunbeam of light as it travels through space and (potentially) reaches Earth’s surface, and discuss how the greenhouse effect can be both a good and bad thing!

Sources
https://www.nejm.org/doi/full/....10.1056/NEJM19730913
Bryant, R.H. 1990. Physical Geography. Rupa and Co.
Christopherson, R.W. 2010: Elemental Geosystems. Prentice Hall

Watch our videos and review your learning with the Crash Course App!
Download here for Apple Devices: https://apple.co/3d4eyZo
Download here for Android Devices: https://bit.ly/2SrDulJ

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Christine Phelan, Nick, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Laura Damon, Andrei Krishkevich, Eric Prestemon, Jirat, Brian Thomas Gossett, Ian Dundore, Jason A Saslow, Justin, Jessica Wode, Mark, Caleb Weeks
__

Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support Crash Course on Patreon: http://patreon.com/crashcourse

CC Kids: http://www.youtube.com/crashcoursekids

#CrashCourse #Geography

Algebra is where we substitute a letter (called a pronumeral) to make equations (and even maybe solve them). Algebra isn't hard - if you know the basics. This math lesson looks all at the basics of algebra.

To donate to the tecmath channel:https://paypal.me/tecmath

To support tecmath on Patreon: https://www.patreon.com/tecmath

To buy tecmath mechandise: https://teespring.com/stores/tecmath-store

On this lesson, you will learn how to translate words into algebraic expressions and how to translate algebraic expressions into words!

Not sure of when to use parenthesis? Wondering what a switch word is? Perplexed by seeing the alphabet in math? We got you on this one!

Join us as we explore the ins-and-outs of translating algebraic expressions and equations into words :) For more MashUp Math content, visit http://www.mashupmath.com and join our free mailing list! :)

This lesson answers the questions: How do I write an algebraic expression in words? How do I translate a verbal expression? How do I translate a verbal equation? How do I model a function in words?

Be sure to join our mailing list at http://www.mashupmath.com

🚀 Become an AI Master – All-in-one AI Learning https://aimaster.me/pro
Check out the Million Dollar Weekend deal on AppSumo! https://appsumo.com/products/m....illion-dollar-weeken [Update] Free download this AI tool: https://bit.ly/3Td1d7A to upscale old video image quality to 4K; Hardware acceleration supported, with bonus feature to convert, download, edit and record.

Million Dollar Weekend on Amazon https://www.amazon.com/Million....-Dollar-Weekend-Surp


In this latest video, we're going to explore the absolute best AI tools out there, all of which are completely free. Over 100 AI tools were launched throughout 2023, but not all of them made the cut. Nevertheless, we've selected the top ones across multiple categories: text processing, image generation, AI-driven music creation, premier video editing tools, and more, without costing you a penny. Make sure to watch the video all the way through, as the lineup is quite fascinating!

WEBSITE: http://www.teachertube.com 1.7b podcast for WHS Alg. 2 students.

¿Qué hay en mi bolso? - Clase de español

En esa nueva clase de español aprenderemos el nombre de objetos del día a día y que se suelen llevar en el bolso.

Objetos de la vida cotidiana que veremos en el video:

Bolso de mujer:
- Cartera
- Móvil
- Desinfectante de manos
- Crema de manos
- Pañuelos de papel
- Espejo de mano
- Barra de labios
- Cinta para el pelo
- Gafas de sol
- Bocadillo
- Algo de beber

Mochila:
- Portatil
- Cargador
- Agenda
- Cuaderno
- Estuche con lápices de diferentes colores

Riñonera:
- Móvil
- Dinero
- Llaves de casa

Bolsa de deporte:
- Camiseta
- Pantalones deportivos
- Short
- Sujetador deportivo
- Sudadera
- Botella de agua
- Toalla
- Champú y acondicionador
- Cepillo
- Pequeño secador de pelo

Bolsa de algodón para el parque:
- Libros
- Tablet
- Túper


¿Y tú, qué llevas siempre contigo?

Capítulos:

00:00 Inicio objetos de la vida cotidiana
00:03 Bolso de mujer
01:53 Bolso de mujer más grande
03:27 Mochila
05:11 Riñonera
06:48 Bolsa de deporte
08:16 Bolsa de algodón para el parque


Más videos para Aprender español nivel A1:

https://youtube.com/playlist?l....ist=PLyhXDeW_WjhBv8b


En nuestro canal encontrarás un curso completo y gratuito de español (español como lengua extranjera) para principiantes y avanzados. En los videos aprenderás español a través de imágenes, diálogos, escuchar y hablar español.

Suscríbete a nuestro canal:

https://www.youtube.com/Aprend....erespañolonline?sub_

Recuerda activar las notificaciones para que te avisemos de cada nuevo vídeo 🔔

Learn to compose numbers and decompose numbers with Scratch Garden's third episode of 'Mini Math Movies'. Watch this fun primary math lesson that teaches composing numbers to 20 in different ways, including with 5 and 10 squares, and also with number bonds. Breaking down numbers has never been so easy with this fun comparing numbers for kids video!

00:00 - Introduction
00:46 - Composing & Decomposing the Number 4
02:38 - Composing & Decomposing the Number 7
04:48 - Composing & Decomposing the Number 16
07:21 - Outro

Mini Math Movies is a new mathematics educational series from Scratch Garden full of in depth math lessons for kids! Check out the full playlist here: https://tinyurl.com/minimathmovies

Scratch Garden makes entertaining educational videos for people that like to laugh and learn! Please Subscribe to see more great fun learning videos from Scratch Garden! https://goo.gl/1biPjA


Website: https://www.scratchgarden.com
Instagram: https://www.instagram.com/scratchgarden
Facebook: https://www.facebook.com/scratchgarden

#minimathmovies #composingnumbers #mathlessonsforkids