Ever wonder why we aren’t exact clones of our parents, or why siblings aren’t exactly alike? The reason traces back to meiosis. In this episode of Crash Course Biology, we’ll discover how egg and sperm cells get made and learn why you’re a totally unique remix of your parents’ DNA.

Introduction: Why Are We All Unique? 0:00
Gametes 1:33
Meiosis 4:09
The Phases of Meiosis 4:44
Nondisjunction 7:14
Why We Aren't Clones 8:18
Meiosis & Genetic Diversity 9:49
Review & Credits 11:32

This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit https://BioInteractive.org/CrashCourse for more information.

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Watch this series in Spanish on our Crash Course en Español channel here: https://www.youtube.com/playli....st?list=PLkcbA0DkuFj

Sources: https://docs.google.com/docume....nt/d/1GLDtAXE6ekg4Ch

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In this lesson, we will explore the Side Angle Side (SAS) and Angle Side Angle (ASA) triangle congruence theorems.

Tags: triangle sas,triangle asa,proving triangles congruent proofs,proving triangles congruent sss sas,proving triangles congruent by sss sas asa and aas,proving triangles congruent sas,triangle proofs sss sas asa aas,triangle proofs khan academy,triangle proofs explained,triangle proofs reasons,side angle side geometry,side angle side triangle,side angle side theorem,angle side angle,side angle side,angle side angle congruence,angle side angle theorem proof

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In this video your students and kids will learn how animals are classified into different groups. Classification breaks very large groups down into smaller groups. This makes them easier to be studied. Scientists classify animals, plants and insects based on things they have in common. Just like kids would do with their toys!

Taxonomy means to classify living things. Scientists and biologists use a taxonomy chart to classify all the organisms on Earth. This chart includes the following groups: Domain, Kingdom, Phylum, Class, Order, Family, Genus and Species. Throughout the video we will learn about the different taxonomies, how animals are classified and spend a little more time on vertebrates and invertebrates. By the end you kid will have a more solid understanding of what makes animals different and may be able to classify them into their proper taxonomies.

Would you like even more Animal Classification Learning resources? Download our free comprehensive lesson plans here: https://learnbright.org/?s=animal+classification here you'll find access to lots more content, worksheets, learning activities and more.

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Learn about what reflexive pronouns are and how to use them.

We hope you are enjoying this video! For more in-depth learning, check out Miacademy.co (https://www.parents.miacademy.co/), an online learning platform with lessons and practice games that go along with our videos. Use coupon code VIDEOSPECIAL for a discount. Good for homeschoolers, Parents, Teachers, or anyone with kids in grades K-8.

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The application of engineering principles is explored in the creation of mobiles. As students create their own mobiles, they take into consideration the forces of gravity and convection air currents. They learn how an understanding of balancing forces is important in both art and engineering design.

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Music: Cold Funk Funkorama

In this video we learn all about comets for kids. Students will learn where comets come from, how comets are formed, what comets are made of and many other fun and interesting facts about comets.

We learn that a comet in the outer parts of the Solar System is too small to be seen from Earth. You can think of a comet as a large snowball filled with or covered by dust, metal, and debris. They have an icy core, covered by a layer of black dust. The center is mainly composed of water and gases, frozen and mixed together with bits of rock and metal. The nickname for a comet can be a “dirty snowball”.

When a comet gets closer to the Sun, the ice melts and changes into a gas. Dust particles spread out around the nucleus in a cloud called a coma, and the Sun causes them to glow. The coma of an average comet is sixty thousand miles across, but it is also very thin. Radiation and the solar wind drive the gases of the coma away causing it to form a straight tail. The tail may grow to ninety-million miles in length.

Do you want to learn more about Comets? Download our free comprehensive lesson plan packed with more content, activities, worksheets and more (Build for grades 4th-6th): https://learnbright.org/lesson....s/science/asteroids-

What is in the video?
0:00 Introduction to Comets
1:37 What is a Comet?
2:16 Comet Tails (Dust Tail and Ion Tails)
2:48 How are Comets Formed?
3:17 Where do Comets Come From?
3:45 Famous Comets (Halley's and Hale Bopp)

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Have you ever seen a duck-billed platypus? This video for kids talks all about one of the most curious mammals in the world. With a duck bill, beaver tail, and otter foot, the platypus is quite strange. Despite being a mammal, it actually lays eggs instead of experiencing live births. They lay their eggs in underground burrows near water that hatch around two weeks later. The young stay with their mother for only about four weeks before swimming off to forage on its own.

While its features are odd, they all have their use. The duck bill is flexible and soft and has thousands of receptors to help them find food in the dark. Their webbed feet push through water quickly. And their tails act like rudders on a ship. They steer the platypuses where they want to go. Additionally, a platypus can remain under water for nearly two minutes before coming up for air!

Believe it or not, a platypus doesn't have any teeth. When it shovels mud and silt into its bill, it also captures gravel. It uses the gravel to chew and grind food. These shy creatures are also very small. Adults weight only around three pounds. That makes them pretty easy prey. However, male platypuses have venomous stingers on their rear feet that can deliver a poisonous sting to attackers.

We hope you and your student(s) enjoyed learning about this interesting creature! If you want to learn even more, head over to our website and download one of our many lesson plans about animals, full of activities, worksheets, and more!

https://learnbright.org/lesson....s/science/duck-bille
https://learnbright.org/lesson....s/science/reptiles-a

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#Platypus
#Mammals

Artist Henri Rousseau painted The Dream in 1910, and it's imagery of a woman lounging on a sofa in the middle of a jungle was as surreal then as it is today. What is it about this artwork that captivated audiences then and now? #art #henrirousseau #thedream

Thanks to our Grandmasters of the Arts Tyler Calvert-Thompson, Divide by Zero Collection, David Golden, and Ernest Wolfe, and all of our patrons, especially Rich Clarey, Iain Eudaily, Frame Monster Design Laboratory, Patrick Hanna, Nichole Hicks, Andrew Huynh, Eve Leonard, David Moore, Gabriel Civita Ramirez, Constance Urist, Nicholas Xu, and Roberta Zaphiriou. To support our channel, visit: http://www.patreon.com/artassignment.

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What are you waiting for? Let's get on our bikes, on a trip back in time and let's learn how these great means of transport were made 🚴‍♀️

💭Which one of the first bicycles that existed would you rather ride??
👇Let me know in the comments bellow!
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Recommended video: The Wheel
https://youtu.be/XzG1aPw7YBc
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The Bicycle: Great inventions that changed history.

Hello friends! Welcome to a new HAppy Learning Video! Today, in our section great inventions of history, we’re going to get to know… the bicycle.

The bicycle is one of the most fun means of transport there is! Also, it is very ecological, and very healthy! Since when we ride a bicycle, we do physical exercise!
But… do you know who, and when the bicycle was invented? No? Well, let’s find out!

The truth is, that alike many other inventions, the bicycle was invented in various phases and it was various people who intervened in its evolution until reaching the bicycle we know today!

Here you can see the first bicycle in history! It was invented by Karl Drais in 1817 but, it doesn’t look a lot like contemporary bikes, it didn’t have pedals and you had to push it with feet on the ground.

In 1861, the Frenchman Ernest Michaux thought of putting pedals on the front wheel, but because it didn’t balance correctly, people fell off and his idea didn’t succeed. But it was useful so in 1873, James Starley, an English inventor, would manufacture a bicycle with the front wheel a lot bigger than the back one. Although the falls from so high up were dangerous, he made it easier to drive them, so in 1873, Thomas Steven commenced the first trip around the world. He took three years to finish it.

In 1885, John Kemp Starley, James Starley’s nephew invented a safe bicycle. Because it had breaks, and was a lot lower, falls were less frequent and less dangerous. Exactly, it was more secure… he had created a contemporary bicycle. From this moment on, the bicycle became famous throughout the whole world. And it started to be used for Cirque shows, to travel or just to do sports. But… the bicycle’s history hasn’t ended, there are still new bikes being invented, like mountain bikes, race bikes, electric or some which won’t move no matter how fast you pedal, like at the gym… There are a lot of curious bicycles, like all of these… It’s clear that the bicycle is an invention which runs smoothly! So everyone let’s ride a bike!

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In this video you will learn the three types of fraction and its picture representation. This K-12 Educational video tutorial is good for both kids and adult. Everyone can watch my educational video and it's for free so you can learn Math tricks and shortcuts on how to compute and solve Math Problems. I will tackle basic and elementary Math for your better understanding. I can also share some study habits to help you ace your Math test. I'll teach you mental math tricks, fast and easy calculation, and many more.
Let's make learning Math Lessons easier and exciting. Elementary Math, Basic Math, Math 101. Math as easy as 123. Matuto ng Mathematics sa pinakamadaling paraan TAGALOG tutorial. Best Math tutorial with lots of examples and drills to practice. Math for everyday life. Achieve learning outcomes that are above average in mathematics by instructing students in a clear, concise and fun way. Top your exam with this easy, educational, fun, and exciting way of learning Math TAGALOG version. K-12 Math in fun and easy ways. Math wonders. Math shortcuts. Mental Math. High School Math. Mag-aral ng Math sa bahay. Pano gumaling sa Math sa mabilis na paraan .

In which John Green teaches you about relations between the early English colonists and the Native people they encountered in the New World. In short, these relations were poor. As soon as they arrived, the English were in conflict with the native people. At Jamestown, Captain John Smith briefly managed to get the colony on pretty solid footing with the local tribes, but it didn't last, and a long series of wars with the natives ensued. This pattern would continue in US history, with settlers pushing into native lands and pushing the inhabitants further west. In this episode, you'll learn about Wahunsunacawh (who the English called Powhatan), his daughter Pocahontas, King Philip's (aka Metacom) War, and the Mystic Massacre. By and large, the history of the Natives and the English was not a happy one, even Thanksgiving wasn't all it's cracked up to be.

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. The English tried and failed for a decade to establish a foothold in the New World in Native territory, leading to the lost colony of Roanoke: https://www.commonlit.org/text....s/settling-a-new-wor
When Jamestown was finally established in Virginia in 1607, the local Powhatan tribes sought friendly relations with the settlers, which quickly deteriorated: https://www.commonlit.org/text....s/chief-powhatan-s-a

Chapters:
Introduction 00:00
Native Americans' Relationship to English Settlers 0:28
Trade Between Europeans and Natives 1:36
Pochahontas 2:23
Conflict, Uprisings, and the Failure of the Virginia Company 3:10
The Puritans' Relationship with Native Americans 4:21
The Pequot War 5:45
King Phillip's War 6:35
Mystery Document 8:24
How Native Americans Resisted Colonization 9:49
Credits 10:54

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ഗണിതപഠനത്തിൽ വിദ്യാർത്ഥിയേയും അധ്യാപകനേയും ഒരുപോലെ സഹായിക്കുന്ന ഒരു ഉബുണ്ടു സോഫ്റ്റ്‌വെയർ ആണ് ജിയോജിബ്ര. ജ്യാമിതീയരൂപങ്ങൾ വരച്ച് തുടങ്ങുന്ന ചെറിയ ക്ലാസ്സിലെ കുട്ടികൾക്കു മുതൽ ഗവേഷണ വിദ്യാർത്ഥികൾക്ക് വരെ ഉപയോഗപ്രദമായ ഒരു സൗജന്യ സോഫ്റ്റ്‌വെയർ ആണ് ഇത്.



ജ്യാമിതീയ രൂപങ്ങളുടെ സഹായത്തോടെ ജ്യാമിതി പഠിക്കുവാനും പഠിപ്പിക്കുവാനും ഉപകാരപ്പെടുന്ന വളരെ നല്ല ഒരു Edubundu സോഫ്റ്റ്‌വെയർ ആണ് ജിയോജിബ്ര. ഗണിതത്തിലെ ജ്യാമിതി പഠിപ്പിക്കാൻ ഇതിനേക്കാൾ നല്ല ഒരു സോഫ്റ്റ്‌വെയർ ഇല്ല എന്ന് തന്നെ പറയാം. ഒരു ഗണിത അദ്ധ്യാപികക്ക് ജിയോജിബ്ര ഉപയോഗിക്കാൻ അറിയേണ്ടത് വളരെ അത്യാവശ്യം ആണ്.

This is a tutorial of Geogebra
D.El.Ed. ICT Practical Exam
Semester 2
DElEd
SCERT 10th IT Exam

Duh, except for the sky… and the ocean…
Don't miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub
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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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It's Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Joe Hanson, Ph.D.
Producer/editor/animator: Jordan Husmann
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Produced by PBS Digital Studios
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Students explore the basics of DC circuits, analyzing the light from light bulbs when connected in series and parallel circuits. Ohm's law and the equation for power dissipated by a circuit are the two primary equations used to explore circuits connected in series and parallel. Students measure and see the effect of power dissipation from the light bulbs. Kirchhoff's voltage law is used to show how two resistor elements add in series, while Kirchhoff's current law is used to explain how two resistor elements add when in parallel. Students also learn how electrical engineers apply this knowledge to solve problems. Power dissipation is particularly important with the introduction of LED bulbs and claims of energy efficiency, and understanding how power dissipation is calculated helps when evaluating these types of claims. This activity is designed to introduce students to the concepts needed to understand how circuits can be reduced algebraically.

View the full lesson on TeachEngineering:
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TeachEngineering has over 1,500 FREE lessons and activities. Visit https://www.teachengineering.org/ for more

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Understanding how changes in foreign ownership of assets effects balance of payments

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Macroeconomics on Khan Academy: Topics covered in a traditional college level introductory macroeconomics course

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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🕷️✨ Did you know that spiders, scorpions, and ticks all belong to the group of arachnids? In this educational video for kids, you’ll discover what arachnids are, their main characteristics, and why they are so important to ecosystems. 🌍

Natural Sciences in Primary School aim to help children understand the world around them by developing their curiosity and critical thinking through observation and experimentation. They learn about nature, living beings, the human body, energy, and the environment, while also understanding the importance of caring for the planet.

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🤴🏰 HISTORY for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🌍⛰️ GEOGRAPHY for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🤝😊 Values and Emotions for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn v=KkCIIQyevjo&list=PL_Y3qbepMRoY7gwuwniiq11oMo6Ofe724

🌍 THE HAPPY LEARNING UNIVERSE

✅ Learn more about Happy Learning and our educational platform: https://happylearning.tv/en/

✅ Discover our social mission: https://happylearning.tv/en/nemesio-diez-foundation/

✅ Download the Happy Learning App:
- iOS: https://apps.apple.com/es/app/....happy-learning-tv/id
- Android: https://play.google.com/store/apps/details?id=tv.happylearning.canal&pli=1

🎓 ABOUT HAPPY LEARNING
Happy Learning is a social enterprise created by the Nemesio Diez Foundation, working to improve people's quality of life through education, health, sports and culture.

As a social company, our mission is to educate all children in the world in values and knowledge, to promote their holistic development and their commitment to society and the planet.

We offer educational resources to families, schools, hospitals and NGOs to ensure that children everywhere have access to a high-quality, comprehensive education.

At Happy Learning, we turn learning into an exciting adventure for primary school children. 🚀
We offer over 2,000 educational resources that combine fun and learning through animated videos, reading materials, interactive games and real-world activities.

📺 HAPPY LEARNING YOUTUBE CHANNEL

Welcome to Happy Learning! 🚀📚
The educational channel where learning is an adventure. Our goal is to spark curiosity and a love for knowledge in primary school children through fun and dynamic educational videos.

Discover the fascinating world of science with videos on Dinosaurs, the Solar System, Invertebrate Animals, Arachnids and much more. Travel back in time with history videos covering Prehistory, the Discovery of America or Ancient Egypt. Learn geography with content about The Earth and Its Movements, the Water Cycle and Parts of the Earth. Strengthen math skills with videos on Multiplication, Subtraction and Matter and Its Properties, and improve Spanish language understanding with lessons on Nouns, Sentences and Subject and Predicate.

Happy Learning transforms education into an exciting experience through animated videos, clear explanations and interactive activities. Perfect for children, parents and teachers seeking high-quality educational content.
🌟 Join our community of explorers!

Students learn about the engineering design process and how products may be reinvented to serve new purposes. Working in groups, students design a type of slime. After creating their slime, the teacher turns out the lights and the students see that the slime they made actually glows in the dark! The groups investigate how to take their new discoveries and apply them to industrial applications. Once they have determined a use for their glowing slime, each group must build/design and test their product outside of class. The groups then create advertisements (videos, brochures, performances, etc.) for their new product(s) or application(s), and present to the judges for review similar to a “Shark Tank” environment.

View the full activity at TeachEngineering:
https://www.teachengineering.o....rg/makerchallenges/v

TeachEngineering has over 1,500 FREE lessons and activities. Visit http://www.TeachEngineering.org for more!

Music: Aimless Amos