🏳️Lessons Worth Sharing | Settings

Website faviconed.ted.com

TED-Ed celebrates the ideas of teachers and students around the world. Discover hundreds of animated lessons, create customized lessons, and share your big ideas.

[

Skip to main content

](#main-content)

Your browser is [not supported](https://help.ted.com/hc/en-us/articles/21654493669143-Which-browsers-do-TED-Ed-support).  

This website may not work as expected. Please use the latest version of Chrome, Firefox, Safari, or Edge.

Dismiss

We create and curate the best educational content on the web

============================================================

[](https://ed.ted.com/lessons/how-does-a-jellyfish-sting-neosha-s-kashef)

What subject are you interested in?

[Featured Lessons](/)[Popular Lessons](/?popular=1)[The Arts](/?category=the-arts)[Business & Economics](/?category=business-economics)[Design, Engineering & Technology](/?category=design-engineering-technology)[Health](/?category=health)[Literature & Language](/?category=literature-language)

[Mathematics](/?category=mathematics) [Philosophy & Religion](/?category=philosophy-religion) [Psychology](/?category=psychology) [Science & Technology](/?category=science-technology) [Social Studies](/?category=social-studies) [Teaching & Education](/?category=teaching-education) [Thinking & Learning](/?category=thinking-learning)

[

06:41](/lessons/the-science-of-falling-in-love-shannon-odell)

[Psychology](/lessons?category=psychology)

[The science of falling in love](/lessons/the-science-of-falling-in-love-shannon-odell)

---------------------------------------------------------------------------------------

Lesson duration 06:41

[](/session/login "Sign in to add Favorite")[](/session/login "Sign in to manage Library")

2,200,081 Views

[

04:50](/lessons/how-one-journalist-risked-her-life-to-hold-murderers-accountable-christina-greer)

[Social Studies](/lessons?category=social-studies)

[How one journalist risked her life to hold murderers accountable](/lessons/how-one-journalist-risked-her-life-to-hold-murderers-accountable-christina-greer)

-------------------------------------------------------------------------------------------------------------------------------------------------------------

Lesson duration 04:50

[](/session/login "Sign in to add Favorite")[](/session/login "Sign in to manage Library")

1,210,792 Views

[

04:46](/best_of_web/MXwQDDs8)

[Social Studies](/lessons?category=social-studies)

[Why does February only have 28 days?](/best_of_web/MXwQDDs8)

-------------------------------------------------------------

Lesson duration 04:46

[](/session/login "Sign in to add Favorite")[](/session/login "Sign in to manage Library")

4,730,139 Views

[

08:44](/lessons/a-street-librarian-s-quest-to-bring-books-to-everyone-storybook-maze)

[Literature & Language](/lessons?category=literature-language)

[A street librarian's quest to bring books to everyone - Storybook Maze](/lessons/a-street-librarian-s-quest-to-bring-books-to-everyone-storybook-maze)

-------------------------------------------------------------------------------------------------------------------------------------------------------

Lesson duration 08:44

[](/session/login "Sign in to add Favorite")[](/session/login "Sign in to manage Library")

43,535 Views

[

09:44](/best_of_web/STr56lju)

[Social Studies](/lessons?category=social-studies)

[Ruby Bridges: The child who defied a mob and desegregated her school](/best_of_web/STr56lju)

---------------------------------------------------------------------------------------------

Lesson duration 09:44

[](/session/login "Sign in to add Favorite")[](/session/login "Sign in to manage Library")

480,482 Views

[

05:32](/lessons/the-myth-of-cupid-and-psyche-brendan-pelsue)

[Literature](/lessons?category=literature-language)

[The myth of Cupid and Psyche](/lessons/the-myth-of-cupid-and-psyche-brendan-pelsue)

------------------------------------------------------------------------------------

Lesson duration 05:32

[](/session/login "Sign in to add Favorite")[](/session/login "Sign in to manage Library")

10,138,914 Views

[

09:45](/lessons/the-difference-between-false-empathy-and-true-support-chezare-a-warren)

[Psychology](/lessons?category=psychology)

[The difference between false empathy and true support - Chezare A. Warren](/lessons/the-difference-between-false-empathy-and-true-support-chezare-a-warren)

------------------------------------------------------------------------------------------------------------------------------------------------------------

Lesson duration 09:45

[](/session/login "Sign in to add Favorite")[](/session/login "Sign in to manage Library")

78,886 Views

[

05:10](/lessons/the-dark-history-of-zombies-christopher-m-moreman)

[Philosophy & Religion](/lessons?category=philosophy-religion)

[The dark history of zombies](/lessons/the-dark-history-of-zombies-christopher-m-moreman)

-----------------------------------------------------------------------------------------

Lesson duration 05:10

[](/session/login "Sign in to add Favorite")[](/session/login "Sign in to manage Library")

979,840 Views

[See all lessons](/lessons.html?sort=featured-position)

What can you do with TED‑Ed?

----------------------------

Educator

Student

Parent

Customize lessons for your students

-----------------------------------

Create lessons around any TED-Ed Animation, TED talk or YouTube video.

Help your students share their ideas

------------------------------------

Our Student Talks program helps students develop and share their ideas.

Share YOUR big idea in a TED-style talk

---------------------------------------

Create your own TED-style talk with TED Masterclass, a program for educators.

[Learn more](/educator)[Register](/users/new)

Explorations

------------

Learn through interactive tools created in collaboration with other organizations.  

[Visit now](/explorations)

TED-Ed Collections

------------------

Find curated collections of lessons organized by theme.  

[Visit now](/ted_ed_collections)

Create your own collection

--------------------------

Build a custom collection of your favorite lessons based on your interests.  

[Visit now](/create_a_collection)

[Register](/users/new)

Discover ideas that spark curiosity

-----------------------------------

Ignite your child's curiosity with TED-Ed Animations, TED Talks, and more.

Customize lessons for your kids

-------------------------------

Create lessons around any TED-Ed Animation, TED Talk or YouTube video.

Your child can share ideas worldwide

------------------------------------

Student Talks will help your learner present big ideas as TED-style talks.

[Learn more](/parent)[Register](/users/new)

[](https://www.kickstarter.com/projects/ted-ed/pandoras-legacy)

Privacy Preference Center

-------------------------

When you visit TED.com, we may store or retrieve information on your browser, mostly in the form of cookies. You can learn more about this in our privacy policy. We use cookies to customize your experience. We do not sell data collected from cookies to any third party, but may provide information to partners to help us update and maintain our website. The information does not usually directly identify you, but it can give you a more personalized experience. Because we respect your right to privacy, you can choose not to allow some types of cookies. Click on the different consent preferences below to find out more. As a reminder, blocking some types of cookies may impact your browsing experience on TED.com.  

[More information](https://www.ted.com/about/our-organization/our-policies-terms/privacy-policy)

Allow All

### Manage Consent Preferences

#### Strictly Necessary Cookies

Always Active

These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.

#### Performance Cookies

 Performance Cookies

These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

#### Targeting Cookies

 Targeting Cookies

These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.

#### Functional Cookies

 Functional Cookies

These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.

Back Button

### Cookie List

 Search Icon

Filter Icon

Clear

 checkbox label label

Apply Cancel

Consent Leg.Interest

 checkbox label label

 checkbox label label

 checkbox label label

Reject All Confirm My Choices

[](https://www.onetrust.com/products/cookie-consent/)