Khan Academy: 2757 products
Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.
All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …
check_box_outline_blank
Health and medicine: Drug use prevention - school programming and protective factors
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree11 minutes
check_box_outline_blank
Class 11 Physics (India): Chain rule
The chain rule states that the derivative of f(g(x)) is f'(g(x))⋅g'(x). In other words, it helps us differentiate *composite functions*. Fo…
VideoFree5
check_box_outline_blank
Health and medicine: What is delirium?
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree6 minutes
check_box_outline_blank
Electrical engineering: Connect the SPDT switches
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree1 minute
check_box_outline_blank
Health and medicine: Left ventricular pressure vs. time
Ever wonder exactly how the left ventricle's pressure changes over time? Find out in this color-coded video! Rishi is a pediatric infectiou…
VideoFree11 minutes
check_box_outline_blank
Biology: Vascular plants = Winning!
Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tre…
VideoFree11 minutes
check_box_outline_blank
Class 11 Physics (India): Rotational kinetic energy
David explains what rotational kinetic energy is and how to calculate it. Class 11 Physics (India) Let's learn, practice, and master topics…
VideoFree14 minutes
check_box_outline_blank
Class 11 Physics (India): Scalar multiplication of vectors
Sal explains what happens graphically and to the components of a vector when we multiply it by a scalar. Class 11 Physics (India) Let's lea…
VideoFree6
check_box_outline_blank
Health and medicine: Flow and perfusion
Learn the difference between blood flow (Volume/time) and perfusion (Volume/time/amount of tissue). Rishi is a pediatric infectious disease…
VideoFree11 minutes
check_box_outline_blank
Physics: Inverse cube law (method of oscillation)
Here we compare the speed of compass oscillation vs. distance from a magnet. What kind of relationship do we observe. Is it linear? Physics…
VideoFree2 minutes
check_box_outline_blank
Class 11 Physics (India): Rewriting before integrating: challenge problem
In this example, we find the antiderivative an expression which is not so simple. Class 11 Physics (India) Let's learn, practice, and maste…
VideoFree6
check_box_outline_blank
Class 11 Physics (India): Volume expansion coefficient
Let's explore the calculation of volume expansion due to temperature change. Good news is we don't need more physics. We can just use the s…
VideoFree5
check_box_outline_blank
Organic chemistry: Naming alkanes with ethyl groups
Naming conventions for alkane chains that have an ethyl group branch. Organic chemistry Sal and Jay cover topics covered in college organic…
VideoFree3 minutes
check_box_outline_blank
Health and medicine: What is coronary artery disease?
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree14 minutes
check_box_outline_blank
Health and medicine: What is anemia?
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree8 minutes