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Example with tangent and radius | Circles | Geometry | Khan Academy

Example with tangent and radius | Circles | Geometry | Khan Academy Teacherflix 6 Views • 2 years ago

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/geometry/cc-geometry-circles/central-inscribed-circumscribed/e/central--inscribed--and-circumscribed-angles?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Watch the next lesson: https://www.khanacademy.org/math/geometry/cc-geometry-circles/central-inscribed-circumscribed/v/hypotenuse-of-right-triangle-inscribed-in-circle?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Missed the previous lesson?
https://www.khanacademy.org/math/geometry/cc-geometry-circles/central-inscribed-circumscribed/v/measure-of-circumscribed-angle?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

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

Black History Month for Kids | Learn about the month-long celebration of African American history

Black History Month for Kids | Learn about the month-long celebration of African American history Teacherflix 6 Views • 2 years ago

NOTE: Around the 4:40 mark, we mention that President Ford expanded the celebration of Black history from one week to the full month 50 years after President Lincoln announced the Emancipation Proclamation. The correct number is 113 years later. We apologize for the error.

Every February, Americans use the month to reflect on and celebrate the achievements of African Americans in American history. That is what Black History Month is all about. In this video for kids, you will learn how this particular month-long celebration came to be. At one point, the country didn't even study any events related to African American history because it dealt with such a tragic period in our history. In 1915, an African American historian named Carter G. Woodson decided to change that. "You must give your own story to the world," he wrote.

Woodson recognized that the predominately white historical association from which he was banned had no interest in attributing advances in science, technology, and other fields to non-White people. And very few people studied Black history at this time. School textbooks didn't even contain information about it. To give proper recognition to the accomplishments of Black Americans, he started the Association for the Study of Negro Life and History and declared the second week in February as "Negro History Week."

Carter Woodson chose this week because it commemorated the birthdays of two significant historical figures related to the freedom and equality of African Americans: Frederick Douglass and Abraham Lincoln. Frederick Douglass was an abolitionist who was born enslaved in the early 1800s. He was able to escape to the North and declared himself a free man, becoming an abolitionist and advocate for human rights. He met Abraham Lincoln on several occasions and may have influenced Lincoln's ideas on slavery.

It wasn't until Gerald Ford was president of the U.S. that the week-long celebration of Black history became a month-long period instead. Black History Month matters because it celebrates the sacrifices that so many Black Americans faced and endured to bring the country to where it is. As former President Obama stated, "We recommit to reaching for a day when no person is judged by anything but the content of their character."

We hope you and your student(s) enjoyed learning about Black History Month! If you want even more information, head over to our website and download one of our many free lesson plans, full of activities, worksheets, and more!

https://learnbright.org/lesson....s/social-studies/why
https://learnbright.org/lesson....s/social-studies/afr

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.

What you will learn in Black History Month for Kids:
0:00 Introduction to Black History Month
0:30 Various famous African Americans
1:05 History of African Americans in the U.S.
2:29 Carter G. Woodson documents Black history
3:37 Second week of February becomes Negro History Week
4:04 Frederick Douglass and Abraham Lincoln
4:59 Importance of Black History Month

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Website: https://learnbright.org/

*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 and sign up for a free account, and you'll instantly 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 Social Studies lesson plans: https://learnbright.org/lessons/?filter_subject=social-studies

#BlackHistoryMonth
#AfricanAmerican

The Human Eye for Kids | Learn why and how eyes allow us to see

The Human Eye for Kids | Learn why and how eyes allow us to see Teacherflix 6 Views • 2 years ago

The human eye is a fascinating organ in our bodies. Do you know how it works? In The Human Eye for Kids video, you will learn how exactly our eyes use light to create images. The muscles that make our eyes blink are the fastest-moving muscles we have! They are both voluntary and involuntary, so we can blink on purpose and blink as a reflex to bright light or dust in the air.

The reason we blink in the first place is that we need to keep our eyes clean. Blinking keeps dirt and other substances from getting in our eyes, and it helps keep them moist and not get too dry. Tears also help keep our eyes clean (and, of course, keep them from drying out). These important drops of water are made using the lacrimal glands.

The white part of your eye is the sclera, which is the outer covering of the eyeball that contains blood vessels that help blood flow to the eyeball. The cornea is a transparent dome in front of the colorful part of your eye. It helps your eye focus when exposed to light, kind of like a window. Something called the anterior chamber is the space between the cornea and iris that is filled with a transparent fluid that keeps the eye healthy.

Speaking of the colorful part of your eye, that is your iris. The iris works with the pupil, which is the black part of your eye, in an interesting way. Light travels through the iris before arriving at the pupil. Muscles attached to the iris change its shape to control the amount of light that gets through the pupil. The pupil is what lets light enter your eye. It gets bigger when we need more light and shrinks when there's plenty of light.

We hope you and your student(s) enjoyed learning about your eyes! If you want to learn even more, head over to our website and download one of our many free lesson plans about the human body, full of activities, worksheets, and more!

https://learnbright.org/lesson....s/science/the-human-
https://learnbright.org/lesson....s/science/the-human-
https://learnbright.org/lesson....s/science/human-hear
https://learnbright.org/lessons/science/bones/

What you will learn in The Human Eye for Kids:
0:00 Introduction to the eye
0:37 Eyes, why we blink, and what tears are for
1:33 The sclera, the cornea, and the anterior chamber
2:35 The color of eyes—iris and pupil
3:35 What happens when light enters the eye
4:41 The retina, rods and cones, and the optic nerve
5:37 Other important parts of the eye
6:21 Review of the facts

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.

Find and Follow Us Online:
Facebook: https://www.facebook.com/LearnBright/
Instagram: https://instagram.com/LearnBrightEducation
Pinterest: https://pinterest.com/LearnBrightEducation
YouTube: @LearnBright
Website: https://learnbright.org/

*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

#HumanEye
#HumanBody

NEW Deepseek AI Good For Creating Trading Strategies in TradingView and PineScript? (FREE AI)

NEW Deepseek AI Good For Creating Trading Strategies in TradingView and PineScript? (FREE AI) Teacherflix 4 Views • 1 year ago

Is this NEW and FREE AI called "deekseek R1" any good for creating trading strategies in Pine Script? I ran my test suite and compared it to other AIs. The Results are FASCINATING!

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