Khan academy Definition and 74 Threads

Learn how to write basic algebraic expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-m...

Learn how to write simple algebraic expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/introdu...

Learn how to write algebraic expressions that involve grouping quantities in parentheses. Practice this lesson yourself on KhanAcademy.org right now: https:/...

Here we have a problem that asks us to identify which variables are dependent and independent. Hint: independent variables are not influenced and remain unch...

It's helpful to express an equation on a graph where we plot at least 2 points. Watch and we'll show you. Practice this lesson yourself on KhanAcademy.org ri...

We're flipping the last video on its head and doing the opposite. This time we give you the graph and ask you to express it as an equation. Practice this les...

In simple addition we learned to add all the numbers together to get a sum. In algebra, numbers are sometimes attached to variables and we need to make sure ...

We've learned about order of operations and combining like terms. Let's layer the distributive property on top of this. Practice this lesson yourself on Khan...

This example of combining like terms in an expression gets a little hairy. Listen closely. Practice this lesson yourself on KhanAcademy.org right now: https:...

Learn how to simplify algebraic expressions by combining like terms. The expressions in this video have decimal and fraction coefficients. Practice this less...

"Equivalent algebraic expressions exercise Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/c...

We match the expressions to their meaning in this example. We're reinforcing our knowledge of linear expressions. Practice this lesson yourself on KhanAcadem...

Let's practice matching expressions to their meaning in this example of interpreting linear expressions. Practice this lesson yourself on KhanAcademy.org rig...

Watch the next lesson: https://www.khanacademy.org/math/algebra2/functions_and_graphs/undefined_indeterminate/v/why-zero-divided-by-zero-is-undefined-indeter...

Multiple arguments for what we could get when we divide zero by zero. We will later see that this can be considered indeterminate Watch the next lesson: http...

Where did the word "Algebra" and its underlying ideas come from? Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/over...

So in September of 2016 I will start college for science & engineering, which will be mostly studying physics, engineering and a little chemistry. I've been studying on Khan Academy for the past few weeks, with the help of some friends online I've been passing all the practices pretty easily...

Should I use khan academy or just by a textbook to learn and review some pre-uni & 1st year undergrad level mathematics for a physics degree? Which would be more fluid and clearer? Is there questions for khan academy? Is a maths books on mechanics relevant, or will any good physics book teach me...

I'm sure I'm not alone, but I personally love the way that the Khan Academy site is structured and how it gives incentives to users to continue learning. However, a lot of the material for physics and math is at a high school level. I was wondering if anybody knew of any online resources...

I have been watching Khan academy, trying to teach myself physics but have realized I have no way to test what I have learned. I would be really grateful if anyone could give me a link to somewhere I could test myself. Thank you

When professors are insufficient or don't teach very well, is Khan Academy a good alternative to learning topics such as calculus/differential equations, etc. as well as the sciences (bio, chem, physics)? I can't tell if the content is good resource material because I'm not an expert on any of...

Khan academy... but for cooking? You know what would be epic genius pants? Like, a khan aacademy type website, but for cooking. Where they take people through even the most simplest of task like boiling water and opening bottles. I wonder if such a place exists? DISCUSS! oh and a site...

Homework Statement http://www.khanacademy.org/video/2-dimensional-projectile-motion--part-3?playlist=Physics Skip video to 4:40. He says that the average velocity in the horizonatal direction is the same as the initial velocity (7.07m/s) because it doesn't change. but wouldn't the velocity...

I'm wondering if anyone else has came across this site, its covers a wide range of maths topics and some physics as well. The lessons are in a video format and are hosted on Youtube. http://www.khanacademy.org/"