How can I cite material from Khan Academy?

We occasionally get questions about how to cite material found on Khan Academy. Journals, schools, and teachers might require specific formats, or may have their own rules about how they wish citations to be recorded. 

If you don't know which style guide to follow, Khan Academy recommends using the current format found in the Chicago Manual of Style (US).

A particularly good source for determining the correct way to cite material found on Khan Academy for APA, MLA, AMA, or Chicago style is http://owl.english.purdue.edu (the Purdue University Online Writing Lab [OWL]).

Most style guides require the same basic information: date(s) published and/or accessed, author(s), title, and URL. For some parts of Khan academy, the web page is dynamic: what you will see depends on your personal account (for example, a certain URL may lead to one exercise for me but another for you). If you need to refer to a particular exercise problem, because the URL is not enough to know which one, be sure to describe the exercise in your writing.

Below are examples of some types of citations for Khan Academy material using the Chicago Manual of Style. The examples are placed in boxes for clarity only.

The Entire Website

[Khan Academy, in italics], accessed [date in appropriate format], [URL to homepage, without https://]

Example if the site was accessed on the 24th of January 2017

Khan Academy. Accessed January 24, 2017. https://www.khanacademy.org.

Text

[author if specified, by Last name, First name.], [article name as it appears in the menu, in quotations marks], [paragraph if indicated, by par. or pars. and number], [Khan Academy in italics], accessed [appropriate date format], [URL, without https://] 

Example of use of an entire article with no mention of the author

"Planning a programming project." Khan Academy. Accessed January, 24.2017. https://www.khanacademy.org/computing/computer-programming/programming/good-practices/a/planning-a-programming-project.

 Example of a paragraph from an Art History article with specified authors 

Harris, Beth and Zucker, Steven. "A brief history of western culture, par. 1." Khan Academy. Accessed January 24, 2017. https://www.khanacademy.org/humanities/ap-art-history/cultures-religions-ap-arthistory/a/a-brief-history-of-western-culture.

Videos and video talk-throughs

[producer if specified, by last name, first name.], [video name as it appears in the menu, in quotations marks], [performer if different from producer], [medium, in parentheses], [if appropriate, time in (hours):minutes: seconds at which the issue occurs followed by /][running time in (hours):minutes: seconds], [Producing organization or company in italics], accessed [appropriate date format], [URL, without https://] 

Example of an entire video with no author

"Systems of equations number of solutions: fruit prices 1 and 2" (video). Khan Academy. Accessed January 24, 2017. http://www.khanacademy.org/math/algebra-home/alg-system-of-equations/systems-overview-alg/v/inconsistent-systems-of-equations.

Example of a point in a video with known author and content not produced by Khan Academy

When the content was not produced by Khan Academy, the Khan Academy web page is treated as a container.

Ross, Nancy, "Ancient Near Eastern and ancient Egyptian art," performed by Ydraw (video) 0:30/6:17. Utah System of Higher Education. Accessed January 24, 2017. http://www.khanacademy.org/humanities/art-history-basics/art-1010-ddp/v/ancient-near-eastern-and-ancient-egyptian-art.

CS programs

[coder by Nickname], [program name, in quotations marks], [type of program, in parentheses], [Khan Academy, in italics], accessed [appropriate date format], [URL, without https://] 

Example:

Brian French. "sphere" (user generated JS animation).  Khan Academy. Accessed January 24, 2017. http://www.khanacademy.org/computer-programming/sphere/1744699339.

Images

For photos of artworks see A photo of an artwork, photographer not mentioned.

For simplicity's sake, all images are treated as if the Khan Academy page they are on is only the container. The particulars of the image come first. Then, a line break and an indentation and particulars as if a text was cited.

[Last name, First name of the artist if known], [Title if known], [medium if known, in parentheses], [year created if known], [where found if known]

[Last name, First name of the author of the article if known], [article name as in the menu, in quotation marks], [where on the page the image is inserted], [Khan Academy in, italics], accessed [appropriate date format], [URL without https://]

If neither artist nor title is known, use

Untitled image, [medium if known, in parentheses], [year created if known], [where found if known]

[Last name, First name of the author of the article if known], [article name as in the menu, in quotation marks], [where on the page the image is inserted], [Khan Academy in, italics], accessed [appropriate date format], [URL without https://]

Images on Khan Academy can be created by Khan Academy staff, modified by Khan Academy staff from another image, or be public domain images. Modified images and images from the public domain are credited. As images on Khan Academy rarely have a title, they must be referred to by description and where they are found.

Example of an image with no artist name and no title 

Untitled image. "The scientific method" under "Scientific method: Failure to toast, 4. Make predictions." Khan Academy. Accessed January 24, 2017. http://www.khanacademy.org/science/biology/intro-to-biology/science-of-biology/a/the-science-of-biology.

Example of a modified image that is credited

Untitled image modified from Zifan, Ali. "Prokaryote cell." National Institutes of Health. Accessed January 24, 2017. https://www.khanacademy.org/science/biology/intro-to-biology/what-is-biology/a/what-is-life.