Learn how to solve 60% of 40 and other percent problems. I solve the following percent of problems.
20% of 60
20% of 40
15% of 40
15% of 60

In this activity, students act as environmental engineers involved with the clean up of a toxic spill. Using bioremediation as the process, students select which bacteria they will use to eat up the pollutant spilled. Students learn how engineers use bioremediation to make organism degrade harmful chemicals. Engineers must make sure bacteria have everything they need to live and degrade contaminants for bioremediation to happen. Students learn about the needs of living things by setting up an experiment with yeast. The scientific method is reinforced as students must design the experiment themselves making sure they include a control and complete parts of a formal lab report.

View the full activity on TeachEngineering:
https://www.teachengineering.o....rg/activities/view/c

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

Music: Sugar - Vibe Tracks

https://www.patreon.com/homeschoolpop Learn all about your brain, your heart, your eyes and your nose in these remastered human anatomy videos for kids that I made years ago. Learn incredible facts about how they work and just how special they are!

00:00 The brain for kids
5:51 The heart for kids
8:57 The eyes for kids
13:36 The nose for kids

Music credits:
New Friendly, Digital Lemonade
Link: https://incompetech.filmmusic.....io/song/5759-blippy-
License: http://creativecommons.org/licenses/by/4.0/

Thanks for learning with me today! I hope to see you next video!

Daniel
"Homeschool Pop"

Discover the bee breathing technique to relax and feel calm! In this video, we will show you how to do this easy and effective meditation exercise. Sit cross-legged, follow our step-by-step instructions and enjoy the calm that this practice will bring you. Ideal for everyone--from beginners to meditation experts! 🧘‍♀️🍃

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

If you like our videos, download Smile and Learn now. You’ll discover thousands of activities for children aged 3 to 12 years, all designed by educators. We have hundreds of games, interactive stories and videos in five languages: English, Spanish, Portuguese, Italian, Turkish and French. Try a month for free and start the adventure!

www.smileandlearn.com

VITAL FUNCTIONS https://youtu.be/SKy_C2cr63M
PREMIERES! 👉 https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
THE ANIMAL KINGDOM https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
Discover hundreds of never-before-seen resources! Create your free account at https://my.happylearning.tv/ and start learning in the most entertaining way.

What are you waiting for? Whats your favourite type of insect?
Comment below 😃
Did you know we are surrounded by insects? There are three in every four animals!

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Recommended video: Arachnids
https://youtu.be/6k-0yaLrJjI
-
Hello friends! Welcome to a new Happy Learning video.
Did you know, that for every four animals in the wild, three of them are insects? We calculate that for every human being, there are 200 million insects… We are surrounded by insects, so I think it’s important to to get to know them a little more.

Insects are invertebrate animals that have a share a number of characteristics:
Their body is divided into: head, thorax and abdomen, they have two antennae, six legs and they breathe through their traquea.

From the moment they are born, insects undergo a series of body changes called metamorphoses. Most insects are oviparous, and maggots are born from the eggs. As you can see in the images, they don’t look anything like their parents, they look like worms.
When they grow, they enclose themselves in a cocoon they make with a substance called silk. Inside the cocoon, they undergo an incredible change in their bodies and they exit as adult insects. This metamorphosis stage is called pupa, although when referring to butterflies we also call it chrysalis. This type of metamorphosis happens for 80% of the insects.

The large majority of insects have wings, in fact, they are the only group of invertebrates that can fly.

Another shared characteristic amongst insects is that they have almost perfect vision. They have compound eyes, it’s as if they had hundreds of tiny eyes in each eye, which provides excellent peripheral vision.

As we said before, there are so many insects, and there are also maaany types:
There are very annoying insects, like head lice, flies or mosquitos, interesting insects because of their shape, like stick insects, or leaf insects. Beautiful ones like butterflies or dragonflies, or singer insects like a grasshopper or cricket, that besides from singing is an excellent jumper! But… Do you know my favorite insect? It’s a bee! Because i love the honey they make!

Some insects, like ants or bees, live in highly organised societies, where they each have a job assigned. The Queen ant, for example, is in charge of laying eggs, drone ants protect the nest and worker ants are in charge of getting food and taking care of maggots.

The truth is, insects are incredible and although by their size they might seem unimportant, they are fundamental for nature’s balance. For example, they are in charge, along with some birdies, of pollination. Some insects, like my beloved bees, are constantly flying from flower to flower, transporting pollen from one flower to the next, fertilising them, which makes new amazing plants, come to life!

The truth is most insects, like most living things, are marvelous. Don’t you think?

Goodbye friends! See you next time! And don’t forget to subscribe to Happy Learning Tv!

Learn all about shortage and surplus in this economics video for kids! See how price can affect how much of a product is available, and what people do when there is a surplus. Shortage and surplus are important concepts in elementary social studies, as your child or student learn basics in commerce and economics.

❤️ the videos? Consider supporting my channel here: http://homeschoolpop.com

Thanks for learning with me today! I hope to see you next video!

Daniel
"Homeschool Pop"

Here is a shorts showing you what you can have for breakfast.
https://youtube.com/shorts/aaz....3Udo1SuQ?feature=sha
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Please SUBSCRIBE to our channel, LIKE, and SHARE to encourage us to share more useful and interesting knowledge.
請訂閱我們的頻道、點讚、分享，鼓勵我們分享更多有用又有趣的知識。
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Welcome to watch our videos
歡迎觀看我們所創作的的其他影片
1）Basic Conversation 會話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

2) Grammar 語法
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

3）English Speaking
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

4）Funny Jokes 笑話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

5）Vocabulary 詞彙
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

6）English Idioms 英語成語
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

7）Revision Exercise 重温練習
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

8）Fun Games 趣遊戲味
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

9） Tongue Twister 繞口令
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

10）Writing a composition 作文
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

11) Story Telling 聽故事
https://youtube.com/playlist?l....ist=PLPoPxSDq_ePLrcK

Here are some other videos talking about breakfast.
以下是有關早餐的影片：
Breakfast | Vocabulary | #shorts | https://youtube.com/shorts/aaz3Udo1SuQ
Favourite breakfast? | 1 Minute Chat |#shorts | https://youtube.com/shorts/Z114zm7GaIM

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Please SUBSCRIBE to our channel, LIKE, and SHARE to encourage us to share more useful and interesting knowledge.
請訂閱我們的頻道、點讚、分享，鼓勵我們分享更多有用又有趣的知識。
-----------------------------------------------------------------------------------
Welcome to watch our videos
歡迎觀看我們所創作的的其他影片
1）Basic Conversation 會話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

2) Grammar 語法
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

3）English Speaking
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

4）Funny Jokes 笑話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

5）Vocabulary 詞彙
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

6）English Idioms 英語成語
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

7）Revision Exercise 重温練習
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

8）Fun Games 趣遊戲味
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

9） Tongue Twister 繞口令
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

10）Writing a composition 作文
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

-----------------------------------------------------------------------------------
Please SUBSCRIBE to our channel, LIKE, and SHARE to encourage us to share more useful and interesting knowledge.
請訂閱我們的頻道、點讚、分享，鼓勵我們分享更多有用又有趣的知識。
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Well, it wouldn't be too long after we started developing Ecology that we would try to control the environment. In some ways this was helpful and likely prevented a lot of people from starving. But, there have been a few downsides.


***

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Eric Prestemon, Sam Buck, Mark Brouwer, Bob Doye, Jennifer Killen, Naman Goel, Nathan Catchings, Brandon Westmoreland, dorsey, Indika Siriwardena, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Brian Thomas Gossett, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Malcolm Callis, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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Thousands of parents and educators are turning to the kids’ learning app that makes real learning truly fun. Try Kids Academy with
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Grade 3 math is tough as concepts get more complex. The engaging video will guide your child through addition up to 1000 using base blocks! Let our experienced teacher lead the way as he demonstrates the proper technique to solve the problems on this challenging worksheet.

While watching the video, your child will practice:
• Breaking down large numbers into ones, tens, and hundreds
• Using base blocks as a strategy to understand addition
• Adding using both base blocks, and traditional algorithm addition

What better way to learn challenging grade 3 math, than with an expert teacher giving your child the tools he or she needs? Let’s get started today to master addition up to 1000!

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This week, we're learning about sonnets, and English Literature's best-known purveyor of those fourteen-line paeans, William Shakespeare. We'll look at a few of Willy Shakes's biggest hits, including Sonnet 18, "Shall I compare thee to a summer's day," Sonnet 116, "Let me not to the marriage of true minds admit impediment," and Sonnet 130, "My mistresses's eyes are nothing like the sun." We'll talk about what makes a sonnet, a little bit about their history, and even a little bit about how reading poetry helps us understand how to be human beings.

Consider supporting local book stores by purchasing your books through our Bookshop affiliate link https://bookshop.org/shop/complexly​​ or at your local book seller.

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Learn More at mathantics.com
Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

Learn More at mathantics.com
Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

This Book Will Not Be Fun
by Cirocco Dunlap
Illustrated by Olivier Tallec
Read by Let's Read Stories

*A 2018 Children's and Teen Choice Book Award Finalist!

A mouse who acts as a careful custodian of his book tries to guarantee his reader some peace and order in spite of escalating chaos. For fans of The Book With No Pictures and This Book Just Ate My Dog!

A book is no place for tomfoolery, and this mouse assures us that his book is to be no exception. Just please ignore that Word-Eating Flying Whale, and—oh, no, the lights have gone out. Wait, what is THAT?! Nothing to fear. Everything is under control. . . .

Readers will delight as this charming yet uptight mouse is challenged and subverted by gloriously imaginative creatures that are like nothing you’ve ever seen. Will our little mouse succumb to the attractiveness of their overwhelming exuberance?

Newcomer Cirocco Dunlap delivers an on-point debut picture-book text that dances outside the boundaries of its pages. Olivier Tallec breathes extra lunacy into this nutty little world with his absurdist palette and amusing forms.

Read along with this funny story for beginning readers!
Click here to purchase This Book Will Not Be Fun: https://www.amazon.com/This-Bo....ok-Will-Not-Fun/dp/0

This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This series of videos first looks at multiplying numbers near 10 using base 10. The second video looks at multiplying using base 20 and 30. The third video looks at how to apply this mental multiplication trick to numbers near 50. The forth video the investigates ho to easilt mentally multiply numbers near to 100. Continue your mental math multiplication abilties here!

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Our Scientific Method for Kids video is a fun and engaging way to introduce the scientific method to children. In this video kids will learn all about the scientific method and its steps.

The Scientific Method steps we talk about in this video are: Make an Observation, Ask a Question, Make a hypothesis, Conduct your experiment, draw conclusions, and report the results. We hope you enjoy sharing this scientific method video with your kids and students.

After the video, download our free lesson plan full of other fun worksheets and activities about the Scientific Method: https://learnbright.org/lesson....s/science/scientific

Thank you for watching and learning with us! We’re constantly releasing new content and videos, so click that “Subscribe” button and you’ll get notified.

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*Teachers and Parents! Did you know? In addition to these great videos, we have also created a library of high quality and engaging lessons for your elementary aged student(s). Visit us, sign up for a free account, and instantly you'll have access to thousands of lesson plans, learning materials, teaching instructions, activities, and assignments that your kids will really enjoy! We hope to see you soon!

Browse our entire collection of Science lesson plans: https://learnbright.org/lessons/?filter_subject=science

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Simultaneous equations can be solved easily using either the substitution method or the elimination method. In this video we look at the elimination method to solve simultaneous equations. Don't forget to check your work! To support free math on Patreon (thank you): https://www.patreon.com/tecmath To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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ome people may find these easy - others not - but it is essential if you want to easily mentally multiply bigger numbers that you first master this.

Please like and subscribe!

Here is THE mental multiplication lesson playlist - progressing you through your mental multiplication.
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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Thank you to Brilliant for supporting PBS
To learn more, go to: https://brilliant.org/BeSmart/
↓↓↓ More info and sources below ↓↓↓

In the race to survive, both predators and prey use visual tricks to get ahead. One nearly universal trick is countershading, a color pattern that helps animals erase their own shadows or blend into different backgrounds. It’s worked well enough that nature has produced this pattern over and over again, all over Earth, for at least tens of millions of years.

0:00 Why does every animal look like this?
0:52 A painter's big idea
1:49 Disappearing shadows
2:22 Testing the idea
3:48 Countershading everywhere!
6:10 What about water?
7:22 Making light to hide shadows
8:19 Outro

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

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