Combinations and Permutations word problems.
Stuck?
Go to the youtube playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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How Many Faces, Edges And Vertices Does A Triangular Pyramid Have?
Here we’ll look at how to work out the faces, edges and vertices of a triangular pyramid.
We’ll start by counting the faces, these are the flat surfaces that make the 3D shape. A triangular pyramid has 4 faces altogether - all triangles.
Next we’ll work out how many edges the tetrahedron has, which are where two faces meet. A triangular pyramid has 6 edges.
Next we’ll count the corners of the tetrahedron (the corners). 4 altogether.

For the full playlist for the faces, edges and Vertices of a whole lot of 3D shapes go to https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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How to multiply numbers numbers calculating the fast way! Using this method you will be able to multiply any pair of two and three digit numbers with each other quickly and accurately! Become a math genius in no time at all using vedic math!

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Five fast and easy math tricks for fast multiplication. Great mental math tricks.

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#fastmathtricks
#mentalmath
#mathtrick

How to factorise ANY quadratic equations near to instantly - using this simple trick - in fact with enough practice you'll be factoring quadratic equations faster than your teacher can write the next one on the board!
This quadratic factorising method as a fast, easy factorisation trick with plenty of examples to get you good.


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Pete the Kitty and Baby Animals (Pete the Cat)
by James Dean
Read by Let's Read Stories

This groovy series from New York Times bestselling author-illustrator James Dean introduces Pete the Cat before he was Pete the Cat...when he was little Pete the Kitty!

Oh no! Pete the Kitty has lost his red balloon. Help him look for his balloon in this fun tabbed board book.

Along the way, Pete makes some new friends when he meets other baby animals. Toddlers will love going from tab to tab and learning the names of baby animals, such as puppy, piglet, hatchling, and more.

Click here to purchase Pete the Kitty and Baby Animals (Pete the Cat): https://www.amazon.com/Pete-Ki....tty-Baby-Animals-Cat

Pete the Cat: Go, Pete, Go!
by James Dean

Click here to purchase Pete the Cat: Go, Pete, Go!: https://www.amazon.com/Pete-Cat-Go/dp/0062404393

New York Times bestselling author-artist James Dean brings us a new Pete the Cat adventure, a special reimagining of “The Tortoise and the Hare” as a race between Pete and Turtle, in Pete the Cat: Go, Pete, Go! Includes over 30 fun stickers.
Ding, ding. There’s nothing Pete the Cat loves to do more on a sunny day than ring his little bell and pedal fast on his bicycle. But on this sunny day, Turtle wants to race someone in his new car. Vroom, vroom! Pete and his bicycle are up for the challenge!
And when Pete crosses the finish line, he proves it’s not where you’re going that matters, it’s how groovy of a time you have getting there!

Pete the Cat: Sir Pete the Brave (My First I Can Read)
by James Dean

Click here to purchase Pete the Cat: Sir Pete the Brave: https://www.amazon.com/Pete-Ca....t-Brave-First-Read/d

New York Times bestselling author and artist James Dean brings readers a new story about the most gallant cat around—Pete! This time Pete is a knight on an adventure to save a pal in Pete the Cat: Sir Pete the Brave.
When Lady Callie, the most awesome harpist in all the land, goes missing, it’s up to Sir Pete to save her. But when he ends up trapped in a dragon’s lair, Lady Callie might have to do the saving.
Pete the Cat: Sir Pete the Brave is a My First I Can Read book, which means it’s perfect for shared reading with a child.

Peterrific (Pinkalicious)
by Victoria Kann
Read by Let's Read Stories

The #1 New York Times bestselling author-artist of the Pinkalicious series, Victoria Kann, is back with an imagination-sparking new book starring Pinkalicious’s brother, Peter.

In Peterrific, readers can follow Peter's own adventures as he builds a tower of blocks all the way to the moon.

Peter loves to build with blocks. One day, he decides to build a tower that will reach the moon, and he wants to do it all by himself. Will the moon be made of cheese? Can he catch a shooting star? As Peter climbs higher and higher into space, he discovers he doesn’t have a way down! He’ll have to figure out what to do next—all by himself.

Click here to purchase Peterrific (Pinkalicious): https://www.amazon.com/Peterri....fic-Pinkalicious-Vic

Pete the Cat’s Groovy Bake Sale
by James Dean
Read by Let’s Read Stories

Pete the Cat whips up something extra cool in the next Pete the Cat My First I Can Read tale from New York Times bestselling author-illustrator James Dean!

The school's bake sale is a day away! Pete tries to make something yummy for his friends. But he seems to be only making a giant mess! Will Pete have something delicious in time for the bake sale?

Beginning readers will love Pete's adventure in the kitchen in this My First I Can Read story, complete with original illustrations from the creator of Pete the Cat, James Dean. My First I Can Read books are perfect for shared reading with a child.

Another Pete the Cat book read aloud for children to encourage reading and story time. Supplemental reading from books like Pete the Cat can help develop literacy in your child. Give your child a love of reading with this adorable story for bedtime or when you just need to relax. Kid story and book reading by other children can help encourage your child to learn to read and this my first I can read with Pete the Cat is the perfect book to enjoy with your little one. Thank you for watching another video!

Click here to purchase Pete the Cat’s Groovy Bake Sale: https://www.amazon.com/Pete-Ca....ts-Groovy-Bake-First

The Book with No Pictures
by B. J. Novak
Read by Let's Read Stories

A #1 New York Times bestseller, this innovative and wildly funny read-aloud by award-winning humorist/actor B.J. Novak will turn any reader into a comedian.
You might think a book with no pictures seems boring and serious. Except . . . here’s how books work. Everything written on the page has to be said by the person reading it aloud. Even if the words say . . .

BLORK. Or BLUURF.

Even if the words are a preposterous song about eating ants for breakfast, or just a list of astonishingly goofy sounds like BLAGGITY BLAGGITY and GLIBBITY GLOBBITY.

Cleverly irreverent and irresistibly silly, The Book with No Pictures is one that kids will beg to hear again and again. (And parents will be happy to oblige.)

Click here to purchase :

The Tale of Peter Rabbit Read Aloud for Children - Easter Books for Kids
by Beatrix Potter

Click here to purchase The Tale of Peter Rabbit: hhttps://www.amazon.com/Tale-Pe....ter-Rabbit-Beatrix-P

The Tale of Peter Rabbit is the original classic by Beatrix Potter. The Tale of Peter Rabbit was first published by Frederick Warne in 1902 and endures as Beatrix Potter's most popular and well-loved tale. It tells the story of a very mischievous rabbit and the trouble he encounters in Mr McGregor's vegetable garden! Re-originated in 2002 to mark the centenary of publication bringing it closer to the original edition, six illustrations were restored, four that were removed in 1903 to make room for endpapers and two that have never been used before, Beatrix having initially prepared more illustrations than could be accommodated in the original format. Beatrix Potter is regarded as one of the world's best-loved children's authors of all time. From her first book, The Tale of Peter Rabbit, published by Frederick Warne in 1902, she went on to create a series of stories based around animal characters including Mrs. Tiggy-winkle, Benjamin Bunny, Jemima Puddle-duck, Mr. Jeremy Fisher and Tom Kitten. Her humorous, lively tales and beautiful illustrations have become a natural part of childhood. With revenue from the sales of her books, Beatrix Potter bought a farm - Hill Top - in the English Lake District, where she later became a farmer and prize-winning sheep breeder. She launched the now vast merchandise programme by patenting the very first Peter Rabbit doll in 1903. The product range continues to grow today with licences around the world including baby clothing and bedding, nursery decor products and collectables. Upon her death, Beatrix Potter left 14 farms and over 4000 acres of Lake District farmland to the National Trust so that the place that she loved would remain undeveloped and protected for future generations to enjoy. Today Beatrix Potter's original 23 tales are still published by Frederick Warne, alongside a wide range of other formats including baby books, activity books and gift and sound books. The Tale of Peter Rabbit is number one in Beatrix Potter's series of 23 little books. Look out for the rest! 1 The Tale of Peter Rabbit 2 The Tale of Squirrel Nutkin 3 The Tailor of Gloucester 4 The Tale of Benjamin Bunny 5 The Tale of Two Bad Mice 6 The Tale of Mrs. Tiggy-Winkle 7 The Tale of Mr. Jeremy Fisher 8 The Tale of Tom Kitten 9 The Tale of Jemima Puddle-Duck 10 The Tale of the Flopsy Bunnies 11 The Tale of Mrs. Tittlemouse 12 The Tale of Timmy Tiptoes 13 The Tale of Johnny Town-Mouse 14 The Tale of Mr. Tod 15 The Tale of Pigling Bland 16 The Tale of Samuel Whiskers 17 The Tale of The Pie and the Patty-Pan 18 The Tale of Ginger and Pickles 19 The Tale of Little Pig Robinson 20 The Story of a Fierce Bad Rabbit 21 The Story of Miss Moppet 22 Appley Dapply's Nursery Rhymes 23 Cecily Parsley's Nursery Rhymes

Star Wars BB-8 on the Run - Children's Stories Read Aloud for Kids
by Drew Daywalt
Illustrated by Matt Myers

Click here to purchase Star Wars BB-8 on the Run: https://www.amazon.com/Star-Wa....rs-BB-8-Drew-Daywalt

When BB-8 is separated from his master, Poe Dameron, on the lonely desert planet of Jakku, he has no choice but to keep rolling. It's all up to him to get a top-secret map back to the Resistance so they can find Luke Skywalker and save the galaxy from the evil First Order.

It's scary to have a big job when you're just a little droid on your own. But BB-8 isn't alone for long. As he speeds across the sand, BB-8 meets all kinds of strangers who need his help. Should he do good things, as Poe always told him, or will that get in the way of his mission?

See how everyone's favorite little astromech droid makes friends and foils enemies in this funny and exciting new Star Wars adventure!

The Chupacabra Ate the Candelabra
by Marc Tyler Nobleman
Illustrated by Ana Aranda
Read by Let's Read Stories

"The monster of ancient lore gets a cute makeover in a colorful picture book full of word play and laugh-out-loud twists." - Seira Wilson, Amazon Editor

With its hilarious dialogue, trio of bumbling goats, and fantastically zany villain, this unique, laugh-out-loud story based on a legendary monster is sure to crack up kids and grown-ups alike.

Like most goats, Jayna, Bumsie, and Pep’s greatest fear is being eaten for dinner by the legendary chupacabra—it’s common knowledge that goats are a chupacabra’s favorite food! One night, tired of living in fear, the impetuous goats whip out their trusty candelabra and head off to find the beast and scare it away before it can find them. Little do they know that candelabras are the chupacabra’s third-favorite food . . . and he isn’t about to stop there. This chupacabra has quite the appetite, and the goats are in for a big surprise!

Click here to purchase The Chupacabra Ate the Candelabra: https://www.amazon.com/Chupaca....bra-Candelabra-Marc-

The Night Before Preschool
by Natasha Wing
Illustrated by Amy Wummer
Read by Let's Read Stories

It's the night before preschool, and a little boy named Billy is so nervous he can't fall asleep. The friends he makes the next day at school give him a reason not to sleep the next night, either: he's too excited about going back! The book's simple rhyming text and sweet illustrations will soothe any child's fears about the first day of school.

Help your child deal with back to school worries with the adorable story read aloud about starting preschool. Hearing words read from other kids can help your preschooler develop confidence and literary skills. Thanks for watching!

Click here to purchase The Night Before Preschool: https://www.amazon.com/Night-B....efore-Preschool-Nata

We're still leading up to World War II, but first we gotta talk about the rise of the dictators. Today we talk about the rise of militaristic dictatorships in Germany, the Soviet Union, Japan, and Spain, and the economic depression that set the stage for their rise.

Sources
-Hunt, Lynn et al. Making of the West: Peoples and Cultures. 6th ed. Boston: Bedford St. Martins, 2019.
-Kershaw, Ian. Hitler, A Biography. New York: W. W. Norton, 2010.
-Kotkin, Stephen. Stalin: Waiting for Hitler, 1929-1941. New York: Penguin, 2017.
-Slezkine, Yuri. The House of Government: A Saga of the Russian Revolution. Princeton: Princeton University Press, 2017.
-Smith, Bonnie G. Europe in the Contemporary World, 1900 to the Present. 2nd ed. London: Bloomsbury, 2020.

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#crashcourse #europeanhistory #history

In which John Green teaches you about the presidency of Andrew Jackson So how did a president with astoundingly bad fiscal policies end up on the $20 bill? That's a question we can't answer, but we can tell you how Jackson got to be president, and how he changed the country when he got the job. Jackson's election was more democratic than any previous presidential election. More people were able to vote, and they picked a doozie. Jackson was a well-known war hero, and he was elected over his longtime political enemy, John Quincy Adams. Once Jackson was in office, he did more to expand executive power than any of the previous occupants of the White House. He used armed troops to collect taxes, refused to enforce legislation and supreme court legislation, and hired and fired his staff based on support in elections. He was also the first president to regularly wield the presidential veto as a political tool. Was he a good president? Watch this video and draw your own conclusions.

Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. One of Andrew Jackson's most lasting and memorable policies was that of Indian removal: https://www.commonlit.org/text....s/andrew-jackson-s-s
Jackson’s promotion of this cause led to the infamous Trail of Tears: https://www.commonlit.org/text....s/excerpt-from-trail

Chapters:
Introduction: the Age of Jackson 00:00
Democracy in the United States 0:32
Economics during the Era of Good Feelings 1:56
The Monroe Doctrine 2:48
John Quincy Adams 3:17
The Missouri Compromise 3:56
Martin Van Buren, "The Little Magician", and other Presidential Nicknames 4:58
Andrew Jackson's Presidential Campaign 6:16
The Democratic Party 7:15
The Whig Party 7:41
Jackson's Tariffs 8:28
The Indian Removal Act & The Trail of Tears 9:37
American Banking Under Jackson 10:40
Mystery Document 10:56
Jackson Ends the Second U.S. Bank 12:00
Inflation and the Panic of 1837 12:53
Legacy of the Age of Jackson 13:54
Credits 14:35

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In which John Green kicks off Crash Course US History! Why, you may ask, are we covering US History, and not more World History, or the history of some other country, or the very specific history of your home region? Well, the reasons are many. But, like it or not, the United States has probably meddled in your country to some degree in the last 236 years or so, and that means US History is relevant all over the world. In episode 1, John talks about the Native Americans who lived in what is now the US prior to European contact. This is a history class, not archaeology, so we're mainly going to cover written history. That means we start with the first sustained European settlement in North America, and that means the Spanish. The Spanish have a long history with the natives of the Americas, and not all of it was positive. The Spanish were definitely not peaceful colonizers, but what colonizers are peaceful? Colonization pretty much always results in an antagonistic relationship with the locals. John teaches you about early Spanish explorers, settlements, and what happened when they didn't get along with the indigenous people. The story of their rocky relations has been called the Black Legend. Which is not a positive legend.

Chapters:
Introduction to Crash Course US History 00:00
Native North Americans 0:45
Were Native North Americans 'Primitive?' 1:08
Native North American Populations 1:52
Life in Pre-Columbian America 3:06
Class and Society in Native American Tribes 4:25
Spanish Colonization in North America 5:32
Mystery Document 7:58
The Problem with the Black Legend 9:31
Credits 10:46

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Last week, Hank talked about how stuff mixes together in solutions. Today, and for the next few weeks, he will talk about the actual reactions happening in those solutions - atoms reorganizing themselves to create whole new substances in the processes that make our world the one we know and love. This week, we focus on acids and bases and their proton-exchanging ways.

Watch this video in Spanish on our Crash Course en Español channel! https://youtu.be/Or2h02mqvD4

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ

Table of Contents
Chemistry Can Cause Death 00:00
Acids and Bases are Complicated 02:25
Conjugate Bases 05:37
Conjugate Acids 04:48
Acid-Base Stoichiometry 06:49

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In this episode of Crash Course Psychology, Hank talks about how we learn by observation... and how that can mean beating up an inanimate clown named Bobo.

Want more videos about psychology? Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych!

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Chapters:
Introduction: The Bobo Doll Experiment 00:00
Social Cognitive Learning 1:05
Limitations of Classical & Operant Conditioning 1:58
Learning Associations 2:38
Learning & Cognition 4:06
Latent Learning 4:58
Observational Learning, Modeling, & Imitation 5:36
Reward Pathways & Mirror Neurons 6:59
Observational Social Learning 7:58
Review & Credits 8:48
--

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