Top videos | TeacherFlix | Free Classroom Videos & Ready-to-Use Lesson Resources

Home
Articles

Top videos

All Time

Today

This week

This month

This year

Defined and undefined matrix operations | Matrices | Precalculus | Khan Academy Teacherflix 5 Views • 2 years ago

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/precalculus/x9e81

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix_multiplication/e/defined_and_undefined_matrix_operations?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Watch the next lesson: https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix_multiplication/v/matrix-multiplication-intro?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Missed the previous lesson?
https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix_multiplication/v/multiplying-a-matrix-by-a-column-vector?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

Worked example: Finding derivative with fundamental theorem of calculus | Khan Academy Teacherflix 4 Views • 2 years ago

See what the fundamental theorem of calculus looks like in action. Created by Sal Khan.

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ap-calculus-ab/ab-antiderivatives-ftc/ab-fundamental-theorem-of-calc/e/the-fundamental-theorem-of-calculus?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusAB

Watch the next lesson: https://www.khanacademy.org/math/ap-calculus-ab/ab-antiderivatives-ftc/ab-fundamental-theorem-of-calc/v/swapping-the-bounds-for-definite-integral?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusAB

Missed the previous lesson? https://www.khanacademy.org/math/ap-calculus-ab/ab-antiderivatives-ftc/ab-fundamental-theorem-of-calc/v/connecting-the-first-and-second-fundamental-theorems-of-calculus?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusAB

AP Calculus AB on Khan Academy: Bill Scott uses Khan Academy to teach AP Calculus at Phillips Academy in Andover, Massachusetts, and heÕs part of the teaching team that helped develop Khan AcademyÕs AP lessons. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan AcademyÕs AP Calculus AB channel: https://www.youtube.com/channe....l/UCyoj0ZF4uw8VTFbml
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

ASL What Is a Volcano? for Kids Teacherflix 11 Views • 2 years ago

How many active volcanoes do you think there are in the world? What makes a volcano active versus dormant or extinct? In What Is a Volcano? for Kids, you and your students will learn the answers to the questions and more. Plus, you can conduct an experiment where you make your own model volcano!

A volcano is a mountain made from cooled lava, ash, or other material from previous eruptions. Some even exist on the ocean floor. There are over 1500 active volcanoes in the world today. Every day, 15 to 20 volcanoes erupt somewhere. In the United States, there are active volcanoes in Hawaii, Alaska, California, Oregon, and Washington. Movements of the earth's crust cause volcanic eruptions.

What's the difference between magma and lava? Magma is located beneath the earth's surface. It is made of liquid or semi-liquid rock. After gas bubbles inside the magma expand and build up the pressure in the volcano, the volcano erupts. Once the magma escapes the volcano, we call it lava. The more often a volcano erupts, the larger it becomes as the lava cools and builds up the volcano.

Keep watching to follow along with a fun experiment to see how volcanoes work. You can pause the video when prompted to make sure you gather all the necessary supplies (and people). For more detailed instructions, check out the link below to our Earthquakes and Volcanoes STEM lesson plan. Hope you enjoy!

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

https://learnbright.org/lesson....s/science/earthquake
https://learnbright.org/lesson....s/science/earthquake

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 What Is a Volcano? for Kids:
0:00 Introduction to volcanoes
0:30 What is a volcano?
1:21 How volcanoes form and erupt
2:54 Stages of a volcano
3:39 Preparation for experiment
4:43 Completing the model volcano experiment
5:30 Observation time

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

#ASL
#Volcanoes
#Landforms

Dinosaurs for Kids | Learn about Dinosaur History, Fossils, Dinosaur Extinction and more! Teacherflix 3 Views • 2 years ago

Dinosaurs for Kids is a fun and comprehensive look at dinosaur history. In this video we highlight the various kinds of dinosaurs, talk about how they receive their names, famous dinosaur fossils, and we talk about the people who find dinosaur fossils: Paleontologists.

We think that one of the most fascinating creatures to ever roam the Earth was the dinosaur. You most likely have heard of dinosaurs, seen pictures of them on TV or the Internet, or may have seen their bones in a museum. Dinosaurs are an interesting group of animals that no longer exist, meaning they are extinct. Dinosaurs evolved, meaning they changed, over millions of years.

In this dinosaur for kids video we also talk about how the dinosaurs’ extinction took place about 66 million years ago and 75% of all life on Earth died. There are many theories or guesses as to what may have happened leading to the extinction. They include worldwide volcanic eruptions, changes in the Earth’s climate, or perhaps a meteorite from space smashing into the Earth.

If you're looking for more Dinosaur resources check out our FREE comprehensive lesson plan complete with fun activities, worksheets, quizzes and more! The free dinosaur lesson can be found at: https://learnbright.org/lessons/science/dinosaurs/

Check out some of our other dinosaur-related videos here:
Extinction: https://youtu.be/ogLFEq1X0RM
Dinosaur Facts: https://youtu.be/Q5z5C1MFmT8
T-Rex Facts: https://youtu.be/wOulvIK-brM
Fossils: https://youtu.be/tyOjxjFHW-c
Extinct and Endangered Animals: https://youtu.be/E5cVr3HdLa4

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: https://www.youtube.com/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

#Dinosaurs

Integration by parts: Âºln(x)dx | AP Calculus BC | Khan Academy Teacherflix 7 Views • 2 years ago

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

Worked example of finding an indefinite integral using integration by parts, where the integrand isn't a product. Created by Sal Khan.

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ap-calculus-bc/bc-antiderivatives-ftc/bc-integration-by-parts/e/integration-by-parts?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusBC

Watch the next lesson: https://www.khanacademy.org/math/ap-calculus-bc/bc-antiderivatives-ftc/bc-integration-by-parts/v/integration-by-parts-twice-for-antiderivative-of-x-2-e-x?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusBC

Missed the previous lesson? https://www.khanacademy.org/math/ap-calculus-bc/bc-antiderivatives-ftc/bc-integration-by-parts/v/antiderivative-of-xcosx-using-integration-by-parts?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusBC

AP Calculus BC on Khan Academy: Learn AP Calculus BC - everything from AP Calculus AB plus a few extra goodies, such as Taylor series, to prepare you for the AP Test

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy's AP Calculus BC channel: https://www.youtube.com/channe....l/UC5A2DBjjUVNz8axD-
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us