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Check out the largest gathering of mammals on Earth!

Viewers like you help make PBS (Thank you ๐Ÿ˜ƒ) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

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

Visit Bat Conservation International to learn more about these amazing species and what we can do to protect them: http://batcon.org/

Thanks to Dr. Sharon Swartz and Dr Kenny Breuer from Brown University for use of their wind tunnel footage: http://www.brown.edu/Departments/EEB/EML/

Mexican free-tailed bats hunt at higher altitudes than any other bat: http://bit.ly/10e5Zpe

Doppler radar shows bats intercepting the moth invasion: http://www.youtube.com/watch?v=mvENxTke4Sc

Dr. Aaron Corcoran's research on moths jamming bat echolocation (plus VIDEOS!) http://www.sonarjamming.com/

Rainforest regrowth and seed dispersal by bats: http://bit.ly/1nzOBpN

Some bats are able to create lift more efficiently than birds: http://www.livescience.com/124....5-bats-efficient-fly

White nose syndrome: http://en.wikipedia.org/wiki/White_nose_syndrome

Produced for PBS Digital Studios

Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Director of Photography
Andrew Matthews - Editing/Motion Graphics
John Knudsen - Gaffer
Dalton Allen - Post-production Intern

Theme music:
"Ouroboros" by Kevin MacLeod

Stock images via Shutterstock

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PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY
โ†“ More info and sources below โ†“

In a world of distractions, how do we pay attention?

It seems like every week someone tells us how the internet and the digital age are overloading our brains. Sure, sometimes it feels like we're being fed more information than we can handle, that we're paying attention to the wrong things. Are we giving our brain a fair shot?

I explore some science that show how paying attention can be a bad thing, and then some science about how paying attention can be a very helpful thing
Special cameos by Hank Green and Mike Rugnetta!

Further reading:

The original Simons and Chabris experiment: http://www.youtube.com/watch?v=vJG698U2Mvo

The cocktail party effect: http://www.npr.org/blogs/healt....h/2013/03/07/1736136

The illusion of attention: http://www.guardian.co.uk/scie....nce/neurophilosophy/

How is the internet changing our brains? (Harold Rheingold and more) http://www.edge.org/q2010/q10_index.html#responses

Sherry Turkle - Alone Together http://www.ted.com/talks/sherr....y_turkle_alone_toget

Written and hosted by Joe Hanson
Produced by Painted On Productions (http://www.paintedon.com/)

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Teacherflix
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How does math keep a folded slice from drooping? And what does pizza have to do with the speed of light?

Viewers like you help make PBS (Thank you ๐Ÿ˜ƒ) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

How a 19th Century Math Genius Taught Us the Best Way to Hold a Pizza Slice:
http://www.wired.com/2014/09/c....urvature-and-strengt

Planet Money pizza price comparison: http://www.npr.org/blogs/money..../2014/02/26/28213257

Measure the speed of light with your microwave: http://io9.com/5526055/use-you....r-microwave-to-measu

Produced for PBS Digital Studios

Joe Hanson - Host, writer, editing, graphics
Amanda Fox - Producer, Spotzen Inc
Kate Eads - Associate Producer
John Knudsen - Gaffer, Camera

Theme music:
"Ouroboros" by Kevin MacLeod

Stock images via Shutterstock

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Viewers like you help make PBS (Thank you ๐Ÿ˜ƒ) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

Enjoy these amazing facts about owls!
Donโ€™t miss the next video! SUBSCRIBE! โ–บโ–บ http://bit.ly/iotbs_sub
โ†“ More info and sources below โ†“

As we get ready to watch that big football game that my lawyers tell me Iโ€™m not allowed to say the name of, letโ€™s celebrate a champion of the bird world: Stealthy and silent owls! Learn how owls fly so silently, how they see in the dark, and how owlsโ€™ incredible hearing makes them such superb aerial hunters.

Want more awesome owl science? Check out โ€œWhat Makes Owls So Quiet and Deadly?โ€ from KQEDโ€™s Deep Look: https://www.youtube.com/watch?v=a68fIQzaDBY

Special thanks to:
The Witmer Lab at Ohio University

Learn more:
Wagner, Hermann, et al. "Features of owl wings that promote silent flight." Interface Focus 7.1 (2017): 20160078.

Wagner, Hermann, et al. "Neuroethology of prey capture in the barn owl (Tyto alba L.)." Journal of Physiology-Paris 107.1 (2013): 51-61.

FOLLOW US:

Itโ€™s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Shaena Montanari
Editor/animator/producer: Andrew Orsak
Producer: Stephanie Noone and Amanda Fox

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Produced by PBS Digital Studios
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Teacherflix
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Weโ€™re on PATREON! Join the community โ–บโ–บ https://www.patreon.com/itsokaytobesmart
SUBSCRIBE so you donโ€™t miss a video! โ–บโ–บ http://bit.ly/iotbs_sub
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Why does sex exist? You might think the obvious answer is โ€œreproductionโ€ but there are plenty of organisms on Earth that donโ€™t require sex to reproduce. And the more that scientists examined sex, they more they realized that itโ€™s an expensive and inefficient way to get your genes to the next generation. The true purpose of sex is actually one of the longest-standing mysteries in evolutionary biology. But scientists are closer than ever to finding the answer. Hereโ€™s what we know about the evolutionary enigma of sex.

References: https://sites.google.com/view/....evolutionofsex-refer

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Teacherflix
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Our mission? Make math fun, engaging, and oh-so-easy for both you & your students. Our library of lesson materials is not only super-affordable but is also FREE to try out at http://numberock.com/letsrockmath.

Video Summary
Once upon a time, in a math land so grand that nine canaries found themselves perched on wires over sand. Many say it was all planned - just a device to represent equivalent fractions for kids all over the world to see. Who knows?

Each wire held a fraction, or a piece of the pie, Three ninths, one thirdโ€” oh not in my eye!
โ€œListen up,โ€ said the canaries, feathers all a-fluff, โ€œEquivalent fractions, thatโ€™s some sick stuff!โ€ ๐ŸŽต

Thank you for watching Numberock's Equivalent Fractions Song.

Teacherflix
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#fractionsong #songsforteachers #mathsong
This one's about simple fractions- they're parts of a whole! Have your students sing about halves, thirds, quarters, numerators and denominators!
See more of my math and science resources at: https://mathstory.com

LYRICS:
Fractions, fractions,
They're parts of a whole,
Fractions, fractions,
They're what I know...
They're equal pieces,
They're parts of a pie,
Fractions, fractions,
They're alright!

Half a pie, half a tree,
Halves of different things, are different sizes you see,
But a half is a half, big or small,
It takes two halves, to make one whole

(You have Fractions when you have equal sized parts of a whole. When it comes to halves, it takes two of them to make one whole!)

Fractions, fractions,
Parts of a whole,
Fractions, fractions,
Are what I know...
They're equal pieces,
Parts of a square,
Fractions, fractions,
They're right here!

Tells how many,
Parts there are,
Tells how many parts you got,
When you have parts,
Parts of the whole,
Fractions, fractions what you need to know...

1/3 of a pie,
1/3 of a bar,
Thirds of different things are different sizes by far,
But a third is a third,
Big or small,
It takes three thirds to make one whole!

(It takes 3 thirds to make one whole, 1/3 then 2/3rds, then 3/3rds- that's one whole)

Fractions, fractions,
They're parts of a whole,
Fractions, fractions,
They're what I know
They're equal pieces,
They're parts of a pie,
Fractions, fractions,
They're alright!

Numerator 'Never Under'
On the top,
D for Denominator, always Down,
Numerator up,
Denominator down,
Fractions, fractions,
Are all around!

ยผ pie,
ยผ square,
1/4 + 3/4 make one whole right here!
And a quarter is a quarter,
Big or small,
It takes 4 quarters to make one whole!

Fractions, fractions,
They're parts of a whole,
Fractions, fractions,
They're what I know...
They're equal pieces,
They're parts of a pie,
Fractions, fractions,
They're alright!

Teacherflix
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Once we know how to divide, we must learn about fractions, because not all divisions will lead to whole number quotients. But there are proper fractions, improper fractions, mixed numbers... what are all these things? Just check this out!

Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath

Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio

EMAILโ–บ ProfessorDaveExplains@gmail.com
PATREONโ–บ http://patreon.com/ProfessorDaveExplains

Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM

Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT

Teacherflix
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This video explains what a fraction is, how to write a fraction and the different types of fractions. We also explain what numerator and denominator means. Practice questions and answers are at the end of the video.

For simplifying fractions: https://youtu.be/n-TT3Rk0Tuo
For multiplying and dividing two fractions: https://youtu.be/0e2dyqGvU3E

Skip to:
00:00 Intro
00:20 What is a fraction?
01:25 How to write a fraction (numerator/denominator explained)
02:16 Different types of fractions
02:53 Practice questions and answers



Educational maths help videos to learn mathematics for school, exams or just general life. New videos added weekly.

LIKE AND SUBSCRIBE

Below are some links to products we recommend:
Casio Scientific Calculator Black: https://amzn.to/3E4FBRF
Casio Scientific Calculator Blue: https://amzn.to/2Zb5twk
Casio Scientific Calculator Pink: https://amzn.to/3lWdHBf

An excellent book if you're teaching mathematics or helping your children:
The Elephant in the Classroom by Jo Boaler: https://amzn.to/3vwzra4

Linking rods can be used for a variety of topics: https://amzn.to/3vuZnD7


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With thanks to Mixkit for sound effects and/or music https://mixkit.co/

Teacherflix
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Our mission? Make math fun, engaging, and oh-so-easy for both you & your students. Our library of lesson materials is not only super-affordable but is also FREE to try out at http://numberock.com/letsrockmath.

Thank you for watching Dividing Fractions with KEEP, CHANGE, FLIP Song.

ยปยป-------------ยค-------------ยซยซยปยป-------------ยค-------------ยซยซ

Q. How to divide fractions by fractions?
A. Dividing a fraction by a fraction might seem confusing at first, but it is really very simple. All you need to do is flip the second fractions, multiply, and reduce.

Q. What grade levels do this video target?
A. This video targets learning standards in 5th Grade and 6th Grade. This video also targets standards in the UK from KS2 (Year 6) to KS3 (Year 7).

Q. Where did you guys come from?
A. Numberock is a project that I, Mr. Hehn, began as a 5th Grade math teacher of 7 years. It came together after years of experimenting with my lessons trying to figure out the best way to help my students retain the math concepts they were learning.

Q. Does Numberock drive real results in the classroom?
A. I knew I found the secret sauce when not only were my students retaining the concepts longer, they were singing the songs outside of the classroom during recess and at home with their parents during dinnertime. The songs were so catchy, my students couldn't get the math songs out of their head!

During testing, I often found my students humming the melodies in order to jostle their memory of a rule or problem solving process. As we've all experienced, there is something about the power of music that allows us to retain information easier and for longer periods of time. Without getting into the finer details of multi-sensory learning and how it often helps the students who most need the help, the power of a catchy song is hard to deny.

Q. I love your songs. Where can I experience more of what NUMBEROCK has to offer?

We have additional teaching resources that are always expanding over at https://www.numberock.com. For the low price of $4.95/month, premium members gain access to video-aligned activities like worksheets, printable posters/anchor charts, task cards, self-graded assessments, games, and more.

Coming Soon:
1. Self-Graded Assessments | These will soon be available for every Common Core and TEKS standard from 2nd-6th Grade so you'll be able to track and monitor student progress while your students complete standards-aligned quizzes that are integrated with the NUMBEROCK video they just watched.

2. Number Notes | Were currently working on creating exercises where students will be able to take notes artistically on printable templates featuring characters from the videos.

Research has shown that this will help to integrate their artistic side side of the student's brain with the mathematical side of their brain which helps with long-term memory retention. Our own research has shown us that teacher's who use start using these templates love them! It seems to be a natural fit as we move beyond our unique auditory learning tools into visual learning tools, that when used in concert, cater to the different types of learners that you teach everyday.

๐ŸŽ Hope to see you at https://numberock.com! ๐ŸŽ

Our telling Dividing Fractions with KEEP, CHANGE, FLIP | Fractions Rap video is aligned with the following Common Core standards:

CCSS.Math.Content.5.NF.B.7

CCSS.Math.Content.5.NF.B.7.a

CCSS.Math.Content.5.NF.B.7.b

CCSS.Math.Content.5.NF.B.7.c

CCSS.Math.Content.6.NS.A.1

Teacherflix
0 Tampilan ยท 3 bulan yang lalu

Here is a fun video to help you or your student learn about the basics of fractions, equal parts of a whole. Learn what a fraction is, and what each fractional part is called. Great for 1st grade, 2nd grade, 3rd grade, or even 4th grade students.

Click here for more worksheets-----https://shorturl.at/bwCZ9
Click here for more worksheets-----https://shorturl.at/bqw35
Click here for more worksheets-----https://shorturl.at/fgMR0
Click here for more worksheets----https://shorturl.at/pAQS4



Click this link to get a practice worksheet to show your understanding of fractions and unit fractions
https://www.teacherspayteacher....s.com/Product/Unit-F
https://youtu.be/dDXFhTPmOtg

Teacherflix
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Visit Numberock's website for exclusive content, lesson materials & much more.
FREE TRIAL: https://learnmore.numberock.com/free-cfd.

Thank you for watching our Converting Fractions to Decimals Song
This song targets learning standards from 4th Grade - 6th Grade.

ยปยป-------------ยค-------------ยซยซยปยป-------------ยค-------------ยซยซ

Newly Available for Website Subscribers:
1. Number Notes | Highly-visual math worksheets that integrate drawing and creative processes that make problem-solving and note-taking way more fun.

Research has shown that resources like these worksheets help students to integrate their artistic side with the mathematical side of their brain and as a result aides with long-term memory retention.

Our own research has shown us that teachers who try these activities love them! It seems to be a natural extension beyond song and video and into additional visual learning tools that when used in concert with our videos, cater to the many different types of learners that in your classroom - especially those non-mathy types.

Hope to see you at https://learnmore.numberock.com/free-cfd.

Teacherflix
0 Tampilan ยท 3 bulan yang lalu

#fractions #teaching #math
I use this song to help introduce and reinforce the concept of fractions to my 2nd, 3rd, and 4th graders.

LYRICS:

My doggy Fraction, she likes parts,
She likes them when theyโ€™re equal,
F โ€“ R โ€“ A โ€“ C โ€“ T - I - O - N,
She cut my stuff in equal parts,
Then did it all again! Oh No!

Mom got us a new dog,
Who liked equal parts,
Quarters, halves, thirds,
Our dog had math smarts!
And what did we name her?
Well we named our dog fraction,
And we couldnโ€™t be blamed, it was just a reaction!
Fraction caused trouble, for my momma and me,
Making parts out of things,
Everything she could see,
She cut up or stuff into equal sized pieces,
She cut up our skateboards, she cut up our fleeces!
We told her to stop!
We told her to cease!
She said, โ€œI like everything to be in more than one piece!โ€

My new bed was great,
It was red, green, and blue,
Fraction cut it in half, with a saw, into 2!
โ€œFraction!โ€ I screamed, โ€œwhat did you just do!โ€
She said, โ€œOne part for me, and thereโ€™s one part for you!โ€
I said, โ€œI canโ€™t use a half-bed, thereโ€™s no place to sleep,โ€
Doggy fraction got sad, and she started to weep!
I told her to stop it,
Stop cutting our stuff!
I donโ€™t like these pieces!
Enough is enough!
Fraction stop now,
Donโ€™t consider a sequel,
She looked up and said,
I love parts that are equal!

My new book was cool,
With great pictures and words,
But she cut it in pieces,
3 pieces make thirds!
โ€œFraction,โ€ I screamed, โ€œI canโ€™t read this book now.โ€
She said, โ€œSure you can read it, Iโ€™ll demonstrate how!
One piece for me, and 2 pieces for you,
You hold them like this, we wonโ€™t need to use glue!โ€
I yelled, โ€œThis book is shot, itโ€™s just junk for the birds!
I canโ€™t read the bookโ€™s title, the end, or the words.โ€
My doggy just smiled,
I just love to make thirds!
And what she said next,
It just canโ€™t be explained,
โ€œI prefer things in parts,
Parts of wholes, is my game!โ€

SPOKEN PART:
You get fractions when you divide things into equal parts, like my Dog Fraction used to do. r
For example, this bar has been divided into four equal parts, which are called quarters,
This bar has been divided into 3 equal parts, which are called thirds,
And this bar has been divided into 2 equal parts, which are called halves.

I was making some donuts, and a pink frosted cake,
For momโ€™s upcoming birthday, put the oven on bake,
When they were done cooking, I left them to cool,
Then went out to the school bus, to travel to school.
I returned to my home, that same afternoon,
And I found doggie fraction asleep in my room,
Beside her I saw all the things that Iโ€™d baked,
Cut into quarters, yes, my poor little cake!
Now what did you do, good grief, goodness sake!
Momma wonโ€™t eat these, and they were real hard to make!
And look at the donuts, it will break both our hearts,
Theyโ€™ve been cut very nicely into 4 equal parts,
โ€œFractions are yummy,โ€ she went on to repeat,
โ€œFractions are tasty, like quarters theyโ€™re sweet!
I like equal parts, you know they taste fine,
Theyโ€™re deliciously tasty, all of the time!โ€

My mom ate the cake, and it warmed all our hearts,
She agreed things taste better when divided in parts.
Fraction just smiled, and so did we all,
And she went out to play with a bone, and a ball,
But when she returned, sheโ€™d continued her vices,
โ€˜Cause we saw her dog bone was in six equal slices!
โ€œFraction,โ€ we said, โ€œcanโ€™t you leave some things whole?โ€
She shook her dogโ€™s head, and said, โ€œThatโ€™s not my goal!
Fractions are parts, and parts are so cool,
We use them in cooking, on clocks, and at school!
So never forget, I want no distractions,
Equal parts are so good, because they make up my fractions!โ€

Teacherflix
0 Tampilan ยท 3 bulan yang lalu

For more like this go to https://www.letsdomath.ca/
It's an easy-to-use route to resources, faster than scrolling through videos on YT!

Before you come to this, you need to be confident making new equivalent fractions.

Quick review of how to add fractions when they have the same denominator
(0:21 - 0:36) Demo of adding 2 fractions with different denominators, using fractions model diagrams. 1/4 + 1/2
(0:46 - 1:33) Then, keeping that model in view, we dip into our Fractions Skill-kit to make a common denominator, and THEN we add.
(2:03 - 3:25) Problem 2: 5/6 + 2/3 = 1/2
(3:33 - 5:28) Problem 3: 1/3 + 1/6 + 5/8
If you CAN reduce, you MUST reduce, for your final answer. No improper fractions in your answer.
As always, if it helps you, please help me... with a Thumbs-Up.
Thanks very much!

Teacherflix
0 Tampilan ยท 3 bulan yang lalu

In this video, I show you almost everything there is to know about fractions. In order to do well on the Armed Services Vocational Aptitude Battery (ASVAB) as well as other standardized tests, you must be comfortable solving problems that are similar to the ones in this video.

0:00 Introduction
2:10 Reducing Fractions
4:35 Adding and Subtracting Fractions
11:05 Multiplying and Dividing Fractions
15:38 Improper Fractions and Mixed Numbers
23:25 Converting Fractions to Decimals
28:06 Outro

Affiliate Test Prep Resources
ASVAB AFQT For Dummies
2018 / 2019 ASVAB For Dummies
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ASVAB Study Guide 2019-2020 Secrets: ASVAB Test Prep
Barron's ASVAB Flash Cards, 2nd Edition
1,001 ASVAB Practice Questions For Dummies (+ Free Online Practice)
ASVAB Bilingual, 1E

#GrammarHero #Fractions #Math #ASVAB #PiCAT #AFQT #AceTheASVAB #ASVABVersion

Teacherflix
0 Tampilan ยท 3 bulan yang lalu

Check out the NEW Math Game we made at https://www.MageMath.com/
It is a full video game called Mage Math that helps kids build confidence in math while having tons of fun.

Come learn about fractions for 3rd graders in this fun math video. Help the Number One recharge his space ship with Unit Fractions. This math follows the common core but is basic math that every child needs to know.

We help kids understand a fraction is one part of a whole and that a fraction can only be a fraction if divided into equal parts. We also review the numbers on top are Numerators and the numbers on bottom are the Denominators. The video is great review and introduction to Third Grade Elementary Mathematics involving fractions.

As students progress with division this basic understanding of fractions will help them in their learning.
If you are a teacher this teaches 3.NF.1
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Teacherflix
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Our mission? Make math fun, engaging, and oh-so-easy for both you & your students. Our library of lesson materials is not only super-affordable but is also FREE to try out at http://numberock.com/letsrockmath.

Thank you for watching our mixed numbers and improper fractions song!

Teacherflix
0 Tampilan ยท 3 bulan yang lalu

Our mission? Make math fun, engaging, and oh-so-easy for both you & your students. Our library of lesson materials is not only super-affordable but is also FREE to try out at http://numberock.com/letsrockmath.

Thank you for watching our Adding Mixed Numbers song and learning about fractions with us!

Teacherflix
0 Tampilan ยท 3 bulan yang lalu

โญ๏ธ https://www.cognito.org/ โญ๏ธ

*** WHAT'S COVERED ***
1. How to add and subtract fractions.
2. Worked examples demonstrating fraction addition and subtraction.
* Includes handling improper fractions.
* Includes converting mixed numbers to improper fractions before calculating.
* Simplifying the final fraction answer where necessary.

*** EXAM BOARD INFO ***
Suitable for courses across the world, including all KS3 and GCSE courses in the UK.

*** CHAPTERS ***
0:00 Intro & Key Rules
0:32 Example 1
2:40 Example 2
4:18 Example 3
5:37 Example 4

*** PLAYLISTS ***
https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT

https://youtube.com/playlist?list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g&si=DcihOwUkd9oWbbdp

https://youtube.com/playlist?list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W&si=Y8MsO-FK948jnxpS

https://youtube.com/playlist?list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7&si=-7i5Iq7yOeJrhtu6

https://youtube.com/playlist?list=PLidqqIGKox7VKJD2WxRhoKaI6JGLVean8&si=NH_Q1ujhVgACM2FU

#GCSE #KS3 #Maths #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE #IB #AP

Teacherflix
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Learn how to work out Fractions and what makes up a Fraction with Mr Mercer, using the tune of "APT" by ROSร‰ & Bruno Mars! ๐ŸŽต๐ŸŽถ

This song will help you remember what a fraction is, how to find fractions of shapes and numbers, and what each part of the fraction is called! It also gives you top tips for finding halves and quarters! A very fun song to use too! ๐Ÿ˜„๐Ÿ˜

Like, Share and Subscribe for more Maths Learning songs from Mr Mercer!

#MathswithMrMercer #fractions #numbers #numbersong #halves #quarters #education #maths #math #song #singing #learning #pop #rose #rosรฉ #brunomars #apt #kpop #kpopedit




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