Light will travel in a straight line until it reaches the boundary of a material. When it interacts with the new material it can behave in a few ways. This depends on the frequency of the light and the material it interacts with. Learn about two possible behaviors, absorption and reflection.
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate
Volunteer here: https://www.khanacademy.org/contribute
...
https://www.youtube.com/watch?v=6uHk1Q-Qb8k
Note: All Khan Academy content is available for free at (www.khanacademy.org)
What does learning science tell us about teaching and learning? Sal and Khan Academy’s new Chief Learning Officer Kristen DiCerbo will chat about this topic and more today at noon PT/ 3 PM ET.
For more information visit: keeplearning.khanacademy.org
Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. If you’d like to contribute, please visit:
https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=live&utm_campaign=schoolclosers
...
https://www.youtube.com/watch?v=_2smE5rC6ww
Note: All Khan Academy content is available for free at (www.khanacademy.org)
U08_L2_T3_we1 Multiplying Polynomials1
More free lessons at: http://www.khanacademy.org/video?v=HB48COey2O8
Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
...
https://www.youtube.com/watch?v=HB48COey2O8
Note: All Khan Academy content is available for free at (www.khanacademy.org)
Introduction to conditional probability
More free lessons at: http://www.khanacademy.org/video?v=xf3vfczoCho
...
https://www.youtube.com/watch?v=xf3vfczoCho
Note: All Khan Academy content is available for free at (www.khanacademy.org)
The short-run production function describes the relationship between output and inputs when at least one input is fixed, such as out output varies based on the amount of labor used. We can use this production function to find the total product of labor, the marginal product of labor, and the average product of labor.
AP(R) Microeconomics on Khan Academy: Microeconomics is the study of individual decisionmakers in an economy, such as people, households, and firms. Learn how markets work, how incentives drive decisionmaking, and how market structure influences market outcomes. We hit the traditional topics from an AP Microeconomics course, including basic economic concepts, markets, production and costs, profit maximization perfect competition, imperfectly competitive market structures, game theory, factor markets, and income inequality.
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.
...
https://www.youtube.com/watch?v=8fm9FjDV0iA
Note: All Khan Academy content is available for free at (www.khanacademy.org)
More free lessons at: http://www.khanacademy.org/video?v=xeLeYS7GRvY
...
https://www.youtube.com/watch?v=xeLeYS7GRvY
Note: All Khan Academy content is available for free at (www.khanacademy.org)
Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/probability/statistical-studies/categorical-data/e/trends-in-categorical-data?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics
Watch the next lesson: https://www.khanacademy.org/math/probability/statistical-studies/categorical-data/v/frequency-table-independent-events?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics
Missed the previous lesson?
https://www.khanacademy.org/math/probability/statistical-studies/categorical-data/v/video-games-and-violence-bivariate-data?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics
Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it!
...
https://www.youtube.com/watch?v=TXGhMDbbnzQ
Note: All Khan Academy content is available for free at (www.khanacademy.org)