Search Results: "khan academy live: sat math"

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• 02:17 Popular

  [Official Video] Cruisin' for a Bruisin' - Pentatonix

  816 views / 2 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 04:14 Popular

  [Official Video] Little Drummer Boy - Pentatonix

  994 views / 4 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 04:36

  [Official Video] Angels We Have Heard On High - Pentatonix

  693 views / 4 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:24 Popular

  [Official Video] I Need Your Love - Pentatonix (Calvin Harris feat. Ellie Goulding Cover)

  1,080 views / 3 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 04:26

  [Official Video] Run to You - Pentatonix

  658 views / 1 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 04:40 Popular

  [Official Video] Say Something - Pentatonix (A Great Big World&Christina Aguilera Cover)

  1,009 views / 4 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:23 Popular

  Happy - Pentatonix (Pharrell Cover)

  732 views / 5 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:20 Popular

  [Official Video] Love Again - Pentatonix

  1,581 views / 6 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:38 Popular

  [Official Video] Problem - Pentatonix (Ariana Grande Cover)

  3,029 views / 18 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  Featured
• 04:11 Popular

  [Official Video] La La Latch - Pentatonix (Sam Smith/Disclosure/Naughty Boy Mashup)

  1,260 views / 2 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 04:14 Popular

  [Official Video] Papaoutai– Pentatonix ft. Lindsey Stirling (Stromae Cover)

  1,093 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 04:10 Popular

  [Official Video] Rather Be - Pentatonix (Clean Bandit Cover)

  1,171 views / 2 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:10 Popular

  [Official Video] White Winter Hymnal - Pentatonix (Fleet Foxes Cover)

  1,154 views / 10 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT | BUY WHITE WINTER HYMNAL VIDEO http://smarturl.it/PTXWWHiTv BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | B

• 03:46 Popular

  [Official Video] Winter Wonderland/Don’t Worry Be Happy - Pentatonix (ft Tori Kelly)

  894 views / 3 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY“THAT’S CHRISTMAS TO ME” http://smarturl.it/PTXtctmiT?iqiD=YT | BUY "WINTER WONDERLAND/DON'T WORRY BE HAPPY" VIDEO http://smarturl.it/PTXWWiTv BUY PTX VOL III http://smarturl.i

• 04:05 Popular

  [Official Video] Mary, Did You Know? - Pentatonix

  1,354 views / 17 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY“THAT’S CHRISTMAS TO ME” http://smarturl.it/PTXtctmiT?iqiD=YT | BUY "MARY, DID YOU KNOW?" VIDEO http://smarturl.it/PTXMDYKiTv BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt

• 03:25 Popular

  [Official Video] That’s Christmas To Me - Pentatonix

  882 views / 1 likes - added 9 years ago

  WATCH OUR VLOG to Find Out What Christmas Means to PTX http://smarturl.it/PTXtctmVlog 2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smartu

• 03:42 Popular

  [Official Video] Silent Night (Live) - Pentatonix

  732 views / 3 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 02:21 Popular

  [Official Video] Dance of the Sugar Plum Fairy - Pentatonix

  1,143 views / 1 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:10 Popular

  [Yule Log Audio] Hark! The Herald Angels Sing - Pentatonix

  924 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 02:48

  [Yule Log Audio] White Winter Hymnal - Pentatonix

  653 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 02:17

  [Yule Log Audio] Sleigh Ride - Pentatonix

  654 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:29

  [Yule Log Audio] Winter Wonderland / Don't Worry Be Happy - Pentatonix ft Tori Kelly

  687 views / 1 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:03

  [Yule Log Audio] That's Christmas to Me - Pentatonix

  584 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:24 Popular

  [Yule Log Audio] Mary, Did you Know? - Pentatonix

  746 views / 2 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 02:08

  [Yule Log Audio] Dance of the Sugar Plum Fairy - Pentatonix

  574 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:06

  [Yule Log Audio] It's the Most Wonderful Time of the Year - Pentatonix

  679 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 02:43

  [Yule Log Audio] Santa Claus is Coming to Town - Pentatonix

  688 views / 1 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:14 Popular

  [Yule Log Audio] Silent Night - Pentatonix

  724 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:27

  [Yule Log Audio] Let it Go - Pentatonix

  604 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:04

  Pentatonix Holiday Video Guide

  598 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 04:24 Popular

  [Yule Log Audio] This Christmas - Pentatonix

  778 views / 1 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:42 Popular

  [Yule Log Audio] Angels We Have Heard on High - Pentatonix

  1,380 views / 2 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

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• 03:14 Popular

  [Yule Log Audio] Carol of the Bells - Pentatonix

  867 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:04

  [Yule Log Audio] Go Tell It On the Mountain - Pentatonix

  569 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 04:12 Popular

  [Yule Log Audio] Little Drummer Boy - Pentatonix

  713 views / 4 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:36

  [Yule Log Audio] O Come, O Come Emmanuel - Pentatonix

  585 views / 1 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 02:26 Popular

  [Yule Log Audio] O Holy Night - Pentatonix

  721 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 03:44

  [Yule Log Audio] The Christmas Song (Chestnuts Roasting on an Open Fire) - Pentatonix

  577 views / 0 likes - added 9 years ago

  2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

• 00:58

  SUMMER TOUR ANNOUNCEMENT - WE’RE GOING ON THE ROAD WITH KELLY CLARKSON!!!

  628 views / 0 likes - added 9 years ago

  For all the tour pre-sale details, visit KellyClarkson.com NOW and check to see if we’re is coming to a city near you. See our upcoming On My Way Home World Tour dates below or head to PTXofficial.com. Can’t wait to see you!! _____________________________

• 02:08 Popular

  "Snowman" Clip - The Story of Frozen: Making a Disney Animated Classic

  1,857 views / 3 likes - added 9 years ago

  Did you know "Do You Want to Build a Snowman?" almost did not make the final cut? Learn more this Tuesday at 8pm on ABC in The Story of Frozen: Making a Disney Animated Classic.Viewers will get a rare look inside Walt Disney Animation Studios and unpreced

• 00:40 Popular

  Sesame Street: "Elmo the Musical" Preview

  888 views / 0 likes - added 9 years ago

  Elmo stars in his very own musical, using his math skills to solve problems and save the day. Kids can sing, dance, play, and imagine along with Elmo on these math-filled adventures. You can find the Elmo the Musical DVD here: http://store.sesamestreet.or

• 01:17

  Sesame Street: I'm 1 Too!

  455 views / 0 likes - added 9 years ago

  Ella is one kid with one cat (named Louie) and one tree in her backyard. She lives on the one planet where we all live and likes to look at the one moon we all share. Being one is a whole lot of fun. Subscribe to the Sesame Street Channel here: http://www

• 04:14

  Sesame Street: Tyler Perry&Elmo Eat a Plate of Math

  599 views / 0 likes - added 9 years ago

  How, you might ask. How could Tyler Perry and Elmo eat a plate of math? It's simple, you see. Math is everywhere you look. In the sky, on the subway, in on your face, and of course, on Tyler Perry's plate of nachos. With a plate of nachos, you can count t

• 00:42 Popular

  Sesame Street:“Elmo Super Numbers” Preview

  739 views / 0 likes - added 9 years ago

  Join Elmo at Numeric Con, the biggest number lovers’ convention of the year! Elmo is dressed as "The Dark NINE" and Leela is "Princess THREEah." Their foolproof plan to meet their favorite number heroes, including "Doctor TWO," "In-THREE-Ana Jones," and "

• 02:49

  Sesame Street: Ed Sheeran- Two Different Worlds

  694 views / 0 likes - added 9 years ago

  At home you can play with your mommy and daddy, and you can talk whenever you want. At school you can play too - with your friends, but you must raise your hand to speak and follow your teachers’ instructions. You live in two different worlds. Subscribe t

• 11:33 Popular

  The Renaissance: Was it a Thing? - Crash Course World History #22

  1,173 views / 1 likes - added 9 years ago

  In which John Green teaches you about the European Renaissance. European learning changed the world in the 15th and 16th century, but was it a cultural revolution, or an evolution? We'd argue that any cultural shift that occurs over a couple of hundred ye

• 11:32 Popular

  Wait For It...The Mongols!: Crash Course World History #17

  990 views / 2 likes - added 9 years ago

  Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything

• 11:11 Popular

  The Agricultural Revolution: Crash Course World History #1

  847 views / 0 likes - added 9 years ago

  Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything

• 13:26 Popular

  ATP&Respiration: Crash Course Biology #7

  855 views / 0 likes - added 9 years ago

  In which Hank does some push ups for science and describes the "economy" of cellular respiration and the various processes whereby our bodies create energy in the form of ATP. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/Cras

• 15:40 Popular

  Obamanation: Crash Course US History #47

  774 views / 0 likes - added 9 years ago

  You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th

• 14:11 Popular

  The Market Revolution: Crash Course US History #12

  787 views / 0 likes - added 9 years ago

  In which John Green teaches you about the Market Revolution. In the first half of the 19th century, the way people lived and worked in the United States changed drastically. At play was the classic (if anything in a 30 year old nation can be called classi

• 13:57 Popular

  Where US Politics Came From: Crash Course US History #9

  764 views / 0 likes - added 9 years ago

  In which John Green teaches you where American politicians come from. In the beginning, soon after the US constitution was adopted, politics were pretty non-existent. George Washington was elected president with no opposition, everything was new and excit

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• 09:42 Popular

  The History of Atomic Chemistry: Crash Course Chemistry #37

  1,056 views / 0 likes - added 9 years ago

  You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

• 09:29 Popular

  Equilibrium Equations: Crash Course Chemistry #29

  745 views / 0 likes - added 9 years ago

  You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

• 11:45 Popular

  Ideal Gas Problems: Crash Course Chemistry #13

  935 views / 0 likes - added 9 years ago

  We don't live in a perfect world, and neither do gases - it would be great if their particles always fulfilled the assumptions of the ideal gas law, and we could use PV=nRT to get the right answer every time. Unfortunately, the ideal gas law (like our cul

• 11:09

  Water and Classical Civilizations: Crash Course World History 222

  692 views / 1 likes - added 9 years ago

  In which John Green teaches you about water! So, we talk about resources a lot on Crash Course, and today is no exception. It turns out people can't live without water, which means it's absolutely necessary for civilization. Today John talks about water i

• 12:51 Popular

  Population, Sustainability, and Malthus: Crash Course World History 215

  1,145 views / 0 likes - added 9 years ago

  In which John Green teaches you about population. So, how many people can reasonably live on the Earth? Thomas Malthus got it totally wrong in the 19th century, but for some reason, he keeps coming up when we talk about population. In 1800, the human popu

• 13:43 Popular

  Rethinking Civilization - Crash Course World History 201

  754 views / 0 likes - added 9 years ago

  In which John Green returns to teaching World History! This week, we'll be talking about the idea of civilization, some of the traditional hallmarks of so-called civilization, and why some people would choose to live outside the civilization model. It tur

• 12:20

  The Anthropocene and the Near Future: Crash Course Big History #9

  689 views / 1 likes - added 9 years ago

  In which John Green, Hank Green, and Emily Graslie teach you about the Anthropocene, an unofficial geological era that covers the last century or so, in which humanity has made massive progress. We've discovered the Higgs-Boson particle, and awesome elect

• 14:33 Popular

  The Sun&The Earth: Crash Course Big History #3

  949 views / 2 likes - added 9 years ago

  In which John Green, Hank Green, and Emily Graslie teach you about our Sun, and the formation of the planets. We're going to focus on the formation and development of the Earth, because that's where people live. You'll learn about the Solar nebula, the bi

• 09:39

  Spring potential energy example (mistake in math)

  487 views / 0 likes - added 9 years ago

  A spring, a frozen loop-d-loop and more! (See if you can find the mistake I made and get the right answer!) More free lessons at: http://www.khanacademy.org/video?v=P3QV9ktuYlQ

• 09:01 Popular

  Dependent Probability Example 1

  754 views / 0 likes - added 9 years ago

  Example of the type of problem in the Khan Academy Dependent Probability module More free lessons at: http://www.khanacademy.org/video?v=xPUm5SUVzTE

• 12:16

  Singapore Math: Grade 3a Unit 2 (part 11)

  550 views / 0 likes - added 9 years ago

  Some 2-step word problems.

• 11:31

  Singapore Math: Grade 3a Unit 2 (part 10)

  586 views / 0 likes - added 9 years ago

  Some final 4 digit subtraction problems.

• 13:07

  Singapore Math: Grade 3a Unit 2 (part 9)

  501 views / 0 likes - added 9 years ago

  More on subtracting 4-digit numbers

• 15:02

  Singapore Math: Grade 3a Unit 2 (part 8)

  453 views / 0 likes - added 9 years ago

  Subtracting 4-digit numbers

• 12:13

  Singapore Math: Grade 3a Unit 2 (part 7)

  445 views / 0 likes - added 9 years ago

  Even more adding of 4-digit numbers

• 13:54

  Singapore Math: Grade 3a Unit 2 (part 6)

  427 views / 0 likes - added 9 years ago

  More adding of 4 digit numbers

• 14:18

  Singapore Math: Grade 3a Unit 2 (part 5)

  496 views / 0 likes - added 9 years ago

  Adding 4 digit numbers

• 13:04

  Singapore Math: Grade 3a Unit 2 (part 4)

  453 views / 0 likes - added 9 years ago

  Some more word problems

• 09:57

  Singapore Math: Grade 3a Unit 2 (part 3)

  476 views / 0 likes - added 9 years ago

  A man selling balloons at a carnival.

• 13:07

  Singapore Math: Grade 3a Unit 2 (part 2)

  511 views / 0 likes - added 9 years ago

  Word problem with cookies

• 14:26

  Singapore Math: Grade 3a Unit 2 (part 1)

  605 views / 0 likes - added 9 years ago

  The sum of and difference between 2 numbers.

• 17:53

  Singapore Math: Grade 3a, Unit 1 (part 9)

  501 views / 0 likes - added 9 years ago

  More number patterns with place value

• 15:39

  Singapore Math: Grade 3a, Unit 1 (part 8)

  468 views / 0 likes - added 9 years ago

  More on number patterns with place value.

• 13:06

  Singapore Math: Grade 3a, Unit 1 (part 7)

  488 views / 0 likes - added 9 years ago

  Place value, ordering numbers, number patterns

• 15:44

  Singapore Math: Grade 3a, Unit 1 (part 6)

  481 views / 0 likes - added 9 years ago

  Ordering numbers using place value

• 13:07

  Singapore Math: Grade 3a, Unit 1 (part 5)

  463 views / 0 likes - added 9 years ago

  Even more on place value

• 12:24

  Singapore Math: Grade 3a, Unit 1 (part 4)

  461 views / 0 likes - added 9 years ago

  More on place value

• 13:18

  Singapore Math: Grade 3a, Unit 1 (part 3)

  621 views / 0 likes - added 9 years ago

  Objectives: Read and write numbers less than 10,000. Relate each digit in a 4-digit number to its place value. Compare and order numbers within 10,000.

• 15:11

  Singapore Math: Grade 3a Unit 1 (part 2)

  501 views / 0 likes - added 9 years ago

  Objectives: Read and write numbers less than 10,000. Relate each digit in a 4-digit number to its place value.

• 15:31

  Singapore Math: Grade 3a, Unit 1 (part 1)

  499 views / 0 likes - added 9 years ago

  Objectives: Read and write numbers less than 10,000. Relate each 4-digit number to its place value.

• 02:06

  Bay Area CBS Station with Salman Khan

  610 views / 1 likes - added 9 years ago

  Bay Area CBS Station with Salman Khan Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 08:24 Popular

  IIT JEE Complex Root Probability (part 2)

  781 views / 0 likes - added 9 years ago

  2010 Paper 1 problem 31 Math (part 2).avi More free lessons at: http://www.khanacademy.org/video?v=S3KMyYYGuPE

• 13:43 Popular

  IIT JEE Complex Root Probability (part 1)

  710 views / 0 likes - added 9 years ago

  2010 Paper 1 problem 31 Math (part 1) More free lessons at: http://www.khanacademy.org/video?v=bV_HSZ_W0nk

• 08:05

  Vi and Sal Talk About the Mysteries of Benford's Law

  468 views / 0 likes - added 9 years ago

  Vi Hart visits Khan Academy and talks about Benford's Law with Sal More free lessons at: http://www.khanacademy.org/video?v=6KmeGpjeLZ0

• 09:56

  Challenging Perimeter Problem

  558 views / 0 likes - added 9 years ago

  Perimeter of rectangle covered by 9 non-overlapping squares. From 200) American Invitational Math Exam More free lessons at: http://www.khanacademy.org/video?v=1uWZNW5PF-s

• 05:47

  LeBron asks about free throws versus three pointers

  552 views / 0 likes - added 9 years ago

  LeBron James asks Sal Khan whether it is easier to make three free throws or one three pointer More free lessons at: http://www.khanacademy.org/video?v=PddbEVNMgTY

• 07:41

  Math Mechanics of Thai Banking Crisis

  663 views / 0 likes - added 9 years ago

  Going through the mechanics of how a Thai financial institution can lose their shirt when their currency devalues. More free lessons at: http://www.khanacademy.org/video?v=9p3HNMe-oAI

• 09:02

  Mathy Version of MPC and Multiplier (optional)

  638 views / 0 likes - added 9 years ago

  Generalizing what we did in the last video with more math More free lessons at: http://www.khanacademy.org/video?v=czfJKPN-HEo

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