Duh, except for the sky… and the ocean…
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Among living things, the color blue is oddly rare. Blue rocks, blue sky, blue water, sure. But blue animals? They are few and far between. And the ones that do make blue? They make it in some very strange and special ways compared to other colors. In this video, we'll look at some very cool butterflies to help us learn how living things make blue, and why this beautiful hue is so rare in nature.

SPECIAL THANKS:
Smithsonian Institution - National Museum of Natural History
Bob Robbins, Ph.D. - Curator of Lepidoptera
Juan Pablo Hurtado Padilla - Microscope Educator

Richard Prum, Ph.D. - Yale University
Vinothan Manoharan, Ph.D. - Harvard University

SOURCES:

Bagnara, J. T., Fernandez, P. J., & Fujii, R. (2007). On the blue coloration of vertebrates. Pigment Cell & Melanoma Research, 20(1), 14-26.

Cuthill, I. C., Allen, W. L., Arbuckle, K., Caspers, B., Chaplin, G., Hauber, M. E., ... & Mappes, J. (2017). The biology of color. Science, 357(6350), eaan0221.

Kinoshita, S., Yoshioka, S., & Miyazaki, J. (2008). Physics of structural colors. Reports on Progress in Physics, 71(7), 076401.

Kinoshita, S. (2008). Structural colors in the realm of nature. World Scientific.

Prum, R. O., Quinn, T., & Torres, R. H. (2006). Anatomically diverse butterfly scales all produce structural colours by coherent scattering. Journal of Experimental Biology, 209(4), 748-765.

Vukusic, P., & Sambles, J. R. (2003). Photonic structures in biology. Nature, 424(6950), 852-855.

Vukusic, P., Sambles, J. R., Lawrence, C. R., & Wootton, R. J. (1999). Quantified interference and diffraction in single Morpho butterfly scales. Proceedings of the Royal Society of London B: Biological Sciences, 266(1427), 1403-1411.



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Did you know some people 'see' letters in color or 'taste' music? In this video, we’ll talk about synesthesia, how it works in the brain, and why some people experience these fascinating sensory connections while most of us don’t.

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Pre-order our book YOU ARE AN ARTIST (which includes new assignments!) here: http://bit.ly/2kplj2h Today's episode has been sponsored by Squarespace. For more information, visit http://www.squarespace.com/artassignment

What is public art? Who funds it, owns it, and shapes it? Who does it serve? And why is it important? We try to answer some of these questions by looking at an example of public art that never came to be - Fred Wilson’s E Pluribus Unum.

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Surrealist artist Salvador Dali is well known for his distinctive mustache and melting clocks, but what about his 1973 cookbook? Come along with us as we attempt a Bush of Crayfish in Viking Herbs from Les Diners de Gala, and also explore Dali's life and art.

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Sampling, appropriating, borrowing, stealing. Whatever you want to call it, artists have been copying since time immemorial. We look into the history of the practice, and share our theories of why it is done, and what it can offer us. To support our channel, or at least consider it: http://www.patreon.com/artassignment.

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Join Miracle for a heartwarming storytelling session featuring 'Dan and Jan.'

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A war has been raging for billions of years, killing trillions every single day, while we don’t even notice. This war involves the single deadliest being on our planet: The Bacteriophage.

Created with scientific advice and editing by James Gurney.


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The Deadliest Being on Planet Earth – The Bacteriophage

The Numberland Rescue team have come together to sort out problems for their Numberblob friends. One of the Numberblobs needs help getting to sleep, whilst some of the other Numberblobs have missed the circus. The Numberblocks pair up to help solve these worries, and put things right. Just when they think all the rescues have been completed they get one final alert - a Numberblob, in urgent need of a birthday party. How will Three and Seven save the day?


For more, download the official Numberblocks apps;
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We are the Numberblocks! Little blocks with big ideas, having a ton of number fun. Learn how to add, subtract and count the fun and educational way! In this educational CBeebies cartoon for kids, children can learn how to count with basic maths sums, using addition and subtraction with singular blocks that join together to make increasingly bigger numbers.

#Numberblocks #LearnToCount #season8

Unlock the full potential of AI in your classroom with Matt Bergman’s 7 essential tips for crafting better AI prompts! In this video, Matt shares practical strategies that will help you create more effective and engaging prompts for your students using AI tools. Whether you’re a seasoned educator or just starting to explore AI in education, these tips will enhance your teaching practices and promote a more personalized, inclusive learning experience.

Want to dive deeper into AI and how it can transform your teaching? Check out the AI and UDL (Universal Design for Learning) course by Novak Education to learn more about how to integrate AI seamlessly into your teaching strategies.

👉 Learn more and enroll in the course here! https://www.novakeducation.com/ai-and-udl-course

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Many people attribute summer vacation to the need for kids to be home and working on their family farms. But the truth is very different and way more sweltering. Cool off and learn about the history of summer vacation in this K12 Teaching Moment! #K12TeachingMoment #Challenge #TikTok #Animation

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How to integrate Social Studies and English Language Arts
Welcome to the Arizona Department of Education’s video on integrating social studies and ELA. In 2018 the Arizona State Board of Education adopted new social studies standards and gave time recommendations for elementary classrooms. With the push for extended ELA and math time this leaves little extra time for social studies. This video will show ways in which you can integrate social studies with ELA to maximize student learning and meet the time recommendations.

This video will help to improve your English vocabulary, reading and listening skills at a faster rate. It also will guide you to learn about Father's Day words and a little story with beautiful pictures, which will help to retain words easily. Foundation literacy to CLB 2 and K - 12 can get immense benefit out of this video. Enjoy!
Several other Videos
1. https://youtu.be/aWWPdakqGRw (past tense verbs 1)
2. https://youtu.be/Zz4E3kfbnKU
3. https://youtu.be/v0vkVZDY9qE
4. https://youtu.be/cKe2Tg8FOX4
5. https://youtu.be/qSsVdppSD9Y
6. https://youtu.be/HDeFsbghtFQ
7. https://youtu.be/c-CkTg-lhP0
8. https://youtu.be/Kr6BQXECcdY
9. https://youtu.be/XqfyzcfGzqA
10. https://youtu.be/kmRjrQm4SW0
11. https://youtu.be/1uXq4vsakB8
12. https://youtu.be/RNe3RHCMFLU
13. https://youtu.be/h6VC6o33dd0
13. https://youtu.be/Q_R9PZMga0Y
14. https://www.youtube.com/watch?v=9uzFDn4kDOs
15. https://youtu.be/vDz8i33YXqE
16. https://youtu.be/tNQPi86U018
17. https://youtu.be/vDz8i33YXqE
18. https://youtu.be/kefGXJ9r_os
19. https://youtu.be/g7Cp-m5MjzU

You have found a read-aloud for the K12 / Stride Kindergarten Literature lesson of Insects of The Rain Forest, published by a WAVA Learning Coach.

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Take our FREE Praxis English Language Arts: Content Knowledge Practice Test:👇
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Ready to tackle the Praxis English: Content Knowledge exam? We can help! This 240 Tutoring video will outline the key concepts you need to know to pass the English Language Arts: Content Knowledge Education (5038) exam. Plus, we’ve got a few Praxis 5038 practice questions.

We cover the ins and outs of what you'll find on the Praxis English: Content Knowledge (5038) exam, with content curated by our curriculum team, plus give you a peek inside our comprehensive Praxis English Language Arts: Content Knowledge study guide — which covers everything you need to know to feel confident you can pass.

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1st Grade Vocabulary Quiz part 3 word list
online public school by Complete K12 Essentials

1st Grade Vocabulary Quiz part 3. Our online public school provides Vocabulary sight words along with a sentence using the word. In this series, we will offer a quiz for each list which will feature a fill in the blank. We have also added boxes for each letter of the correct word.

Additional videos in this series will follow, so be sure to subscribe to our channel and tell a friend. If you have comments or suggestions on future videos please visit our channel linked below.

Please visit our channel to see various grade level materials.

__Complete K 12 Essentials Youtube Channel subscribe here also____ https://youtube.com/channel/UC...._XYRUNkxt9636TWXdgJ9


Welcome to the Complete K12 Essentials Youtube channel!

1st Grade Vocabulary Quiz part 2 word list
online public school by Complete K12 Essentials

1st Grade Vocabulary Quiz part 2. Our online public school provides Vocabulary sight words along with a sentence using the word. In this series, we will offer a quiz for each list which will feature a fill in the blank. We have also added boxes for each letter of the correct word.

Additional videos in this series will follow, so be sure to subscribe to our channel and tell a friend. If you have comments or suggestions on future videos please visit our channel linked below.

Please visit our channel to see various grade level materials.

__Complete K 12 Essentials Youtube Channel subscribe here also____ https://youtube.com/channel/UC...._XYRUNkxt9636TWXdgJ9


Welcome to the Complete K12 Essentials Youtube channel!

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/cc-fourth-grade-m

Let's use our virtual protractor to measure some angles together, shall we?

Watch the next lesson: https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/Angle_basics/v/measuring-angles?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Missed the previous lesson?
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Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Geometry channel:
https://www.youtube.com/channe....l/UCD3OtKxPRUFw8kzYl
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/linear-algebra/al

Determining the eigenvalues of a 3x3 matrix

Watch the next lesson: https://www.khanacademy.org/math/linear-algebra/alternate_bases/eigen_everything/v/linear-algebra-eigenvectors-and-eigenspaces-for-a-3x3-matrix?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra

Missed the previous lesson?
https://www.khanacademy.org/math/linear-algebra/alternate_bases/eigen_everything/v/linear-algebra-finding-eigenvectors-and-eigenspaces-example?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra

Linear Algebra on Khan Academy: Have you ever wondered what the difference is between speed and velocity? Ever try to visualize in four dimensions or six or seven? Linear algebra describes things in two dimensions, but many of the concepts can be extended into three, four or more. Linear algebra implies two dimensional reasoning, however, the concepts covered in linear algebra provide the basis for multi-dimensional representations of mathematical reasoning. Matrices, vectors, vector spaces, transformations, eigenvectors/values all help us to visualize and understand multi dimensional concepts. This is an advanced course normally taken by science or engineering majors after taking at least two semesters of calculus (although calculus really isn't a prereq) so don't confuse this with regular high school algebra.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to KhanAcademy’s Linear Algebra channel: https://www.youtube.com/channe....l/UCGYSKl6e3HM0PP7QR
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/ap-statistics/den

Discussion of how "normal" a distribution might be

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/probability/statistics-inferential/normal_distribution/e/empirical_rule?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics

Watch the next lesson: https://www.khanacademy.org/math/probability/statistics-inferential/normal_distribution/v/ck12-org-normal-distribution-problems-empirical-rule?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics

Missed the previous lesson?
https://www.khanacademy.org/math/probability/statistics-inferential/normal_distribution/v/normal-distribution-excel-exercise?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics

Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to KhanAcademy’s Probability and Statistics channel:
https://www.youtube.com/channe....l/UCRXuOXLW3LcQLWvxb
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/linear-algebra/vectors_and_spaces/vectors/e/scaling_vectors?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra

Watch the next lesson: https://www.khanacademy.org/math/linear-algebra/vectors_and_spaces/vectors/v/linear-algebra-vector-examples?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra

Missed the previous lesson?
https://www.khanacademy.org/math/linear-algebra/vectors_and_spaces/vectors/v/adding-vectors?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra

Linear Algebra on Khan Academy: Have you ever wondered what the difference is between speed and velocity? Ever try to visualize in four dimensions or six or seven? Linear algebra describes things in two dimensions, but many of the concepts can be extended into three, four or more. Linear algebra implies two dimensional reasoning, however, the concepts covered in linear algebra provide the basis for multi-dimensional representations of mathematical reasoning. Matrices, vectors, vector spaces, transformations, eigenvectors/values all help us to visualize and understand multi dimensional concepts. This is an advanced course normally taken by science or engineering majors after taking at least two semesters of calculus (although calculus really isn't a prereq) so don't confuse this with regular high school algebra.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

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Subscribe to KhanAcademy’s Linear Algebra channel:: https://www.youtube.com/channe....l/UCGYSKl6e3HM0PP7QR
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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/algebra/x2f8bb115

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/precalculus/seq_induction/seq_and_series/e/arithmetic_sequences_1?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Watch the next lesson: https://www.khanacademy.org/math/precalculus/seq_induction/seq_and_series/v/arithmetic-sequences?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Missed the previous lesson?
https://www.khanacademy.org/math/precalculus/seq_induction/proof_by_induction/v/alternate-proof-to-induction-for-integer-sum?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn't mean anything unless you have some knowledge of what calculus is. Let's keep it simple, shall we? Calculus is a conceptual framework which provides systematic techniques for solving problems. These problems are appropriately applicable to analytic geometry and algebra. Therefore....precalculus gives you the background for the mathematical concepts, problems, issues and techniques that appear in calculus, including trigonometry, functions, complex numbers, vectors, matrices, and others. There you have it ladies and gentlemen....an introduction to precalculus!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Precalculus channel:
https://www.youtube.com/channe....l/UCBeHztHRWuVvnlwm2
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Have you ever made french toast? Join Caroline and Sophie for Circle Time as they read the book “Breakfast Time” by Cynthia Platt. Listen to the story of how Ollo and Peck make breakfast together. Watch as they whisk ingredients together and make their favorite meal. Learn words with the /fr/ sound, like fridge, fresh, and fruit!

For more fun after the show, print today’s Writing Workshop so kids can plan their own meal with Ollo and Peck!
http://khan.co/KhanKids-Print-April8

Learn more about Khan Academy Kids, our free educational app for children ages 2-7 at http://www.khankids.org.

Available on Apple, Google Play, and Amazon app stores:
http://khan.co/KhanKids-YT-Apple
http://khan.co/KhanKids-YT-Google
http://khan.co/KhanKids-YT-Amazon

Subscribe to our channel so you don’t miss a single episode of Circle Time!

Download World of Tanks PC for FREE and use the code TANKMANIA to receive the Excelsior tank and other rewards by clicking this link: https://tanks.ly/3s3FBPe


T-34: An armoured legend. Learn who created this legendary tank, it's long road filled with different and difficult challenges, from defeats to victory. The iron fist of the Red Army, the T-34 became one of the synonyms for the victory in WWII, paving the way for the modern battle tanks yet having a very humble start even before WWII.

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Created by Daniel Turner (B.A. (Hons) in History, University College London)
Script and Animation: Aleksandar Djokic
Narrator:

Chris Kane
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Made in collaboration with Epic History TV, check out the other episode in this double bill, Francis Drake here: https://youtu.be/WiwEwSdKh0c
Ferdinand Magellan - first circumnavigation of the Earth completed by Juan Sebastián Elcano.


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Credit:
Created by Daniel Turner

Narrator:

Charles Nove

Music Credit

‘LIFE IS’, ‘EIDOLON’, ‘STARS IN HER SKIES’ by Scott Buckley – www.scottbuckley.com.au

‘Attribution 4.0 International’

Banner of Charles I of Spain: Proof02 via Wikimedia CC BY-SA 3.0