Crash Course
@thecrashcourse.bsky.social
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Coming soon: Crash Course Scientific Thinking. This 7-epsiode miniseries in partnership with HHMI Biointeractive will help understand peer review, consensus, what makes sources reliable (or not), and what “correlation doesn’t equal causation” actually means. Watch the course preview 1/13!
It's National Condom Month. Condoms are pretty cheap, at most pharmacies, and when used correctly, highly effective at preventing pregnancy and sexually transmitted infections.
Brush up on your contraception knowledge this month with Crash Course Sex Ed! youtu.be/elDPvihPN4k
Brush up on your contraception knowledge this month with Crash Course Sex Ed! youtu.be/elDPvihPN4k
Birth Control Explained: Sex Ed #8
YouTube video by CrashCourse
youtu.be
February 2, 2026 at 4:14 PM
It's National Condom Month. Condoms are pretty cheap, at most pharmacies, and when used correctly, highly effective at preventing pregnancy and sexually transmitted infections.
Brush up on your contraception knowledge this month with Crash Course Sex Ed! youtu.be/elDPvihPN4k
Brush up on your contraception knowledge this month with Crash Course Sex Ed! youtu.be/elDPvihPN4k
Our Executive Producer, Meghan Modafferi, recently talked to @hankgreen.bsky.social about how Crash Course is made and how science works. Along the way they discussed the world of information, pseudoscience, and why we've never done a Crash Course on math. youtu.be/DpGU8NARX-s
What Science Actually Is (in my opinion, anyway)
YouTube video by Hank Green
youtu.be
January 28, 2026 at 6:34 PM
Our Executive Producer, Meghan Modafferi, recently talked to @hankgreen.bsky.social about how Crash Course is made and how science works. Along the way they discussed the world of information, pseudoscience, and why we've never done a Crash Course on math. youtu.be/DpGU8NARX-s
In the new episode of Crash Course Scientific Thinking, we’ll learn how to interpret the statistics we see in our daily lives. And we’ll explore why we need stats to make informed judgments, be more precise about what we don’t know, and get closer to what we can know. youtu.be/Lw4oMXTEAkw
Statistical Thinking in Science: Crash Course Scientific Thinking #2
YouTube video by CrashCourse
youtu.be
January 27, 2026 at 5:28 PM
In the new episode of Crash Course Scientific Thinking, we’ll learn how to interpret the statistics we see in our daily lives. And we’ll explore why we need stats to make informed judgments, be more precise about what we don’t know, and get closer to what we can know. youtu.be/Lw4oMXTEAkw
Want more Sex Ed? Our partners at the Kinsey Institute have compiled research summaries from recent studies related to the topics covered in each episode of Crash Course Sex Ed. You can find links to relevant resources in the description of each Crash Course Sex Ed video, and at complexly.info/sexed
January 23, 2026 at 5:12 PM
Want more Sex Ed? Our partners at the Kinsey Institute have compiled research summaries from recent studies related to the topics covered in each episode of Crash Course Sex Ed. You can find links to relevant resources in the description of each Crash Course Sex Ed video, and at complexly.info/sexed
Science is our attempt to become less wrong over time. And in honor of Crash Course Scientific Thinking, we put it on a shirt! Get yours at complexly.info/ccsci
January 22, 2026 at 5:38 PM
Science is our attempt to become less wrong over time. And in honor of Crash Course Scientific Thinking, we put it on a shirt! Get yours at complexly.info/ccsci
What is science? And why do we need it? In this episode of Crash Course Scientific Thinking with host @hankgreen.bsky.social, we explore how cognitive bias shapes the way we think about the world, and how scientific thinking can help us overcome it. youtu.be/d2r7Bk1NlgU
Introduction to Cognitive Bias: Crash Course Scientific Thinking #1
YouTube video by CrashCourse
youtu.be
January 20, 2026 at 11:17 PM
What is science? And why do we need it? In this episode of Crash Course Scientific Thinking with host @hankgreen.bsky.social, we explore how cognitive bias shapes the way we think about the world, and how scientific thinking can help us overcome it. youtu.be/d2r7Bk1NlgU
Reposted by Crash Course
My colleagues at @thecrashcourse.bsky.social are looking for subject matter experts in marine biology and English language arts! complexly.com/jobs/
January 20, 2026 at 5:14 PM
My colleagues at @thecrashcourse.bsky.social are looking for subject matter experts in marine biology and English language arts! complexly.com/jobs/
Under the moniker the Bad Naturalist, Sage researches topics in earth science to share with her audience as a fellow lay-person, to demonstrate quality research and critical thinking skills all in an accessible and light-hearted style.
January 13, 2026 at 5:38 PM
Under the moniker the Bad Naturalist, Sage researches topics in earth science to share with her audience as a fellow lay-person, to demonstrate quality research and critical thinking skills all in an accessible and light-hearted style.
Hank Green will be lending his passion for science to the Crash Course screen as host of Crash Course Scientific Thinking. @hankgreen.bsky.social will be joined by special correspondent Sage "The Bad Naturalist" to help us understand foundational principles of scientific thought youtu.be/Y45KrixWRNg
Crash Course Scientific Thinking Preview
YouTube video by CrashCourse
youtu.be
January 13, 2026 at 5:38 PM
Hank Green will be lending his passion for science to the Crash Course screen as host of Crash Course Scientific Thinking. @hankgreen.bsky.social will be joined by special correspondent Sage "The Bad Naturalist" to help us understand foundational principles of scientific thought youtu.be/Y45KrixWRNg
We're hiring a producer! Crash Course producers use strong communication & leadership skills to generate a unique look and feel for various Crash Course series. They should be adept at troubleshooting common production-related obstacles as they arise. Learn more at complexly.com/jobs. Apply by 1/21.
January 12, 2026 at 9:52 PM
We're hiring a producer! Crash Course producers use strong communication & leadership skills to generate a unique look and feel for various Crash Course series. They should be adept at troubleshooting common production-related obstacles as they arise. Learn more at complexly.com/jobs. Apply by 1/21.
Houses in Latin American literature are portals into diverse identities, cultures & political conflicts. The trick is knowing how to read them that way. In this episode of Crash Course Latin American Literature, we make room for the ways that our homes can represent who we are. youtu.be/_cjphE8S_Kk
The Hidden Politics of Home: Crash Course Latin American Literature #8
YouTube video by CrashCourse
youtu.be
January 8, 2026 at 5:40 PM
Houses in Latin American literature are portals into diverse identities, cultures & political conflicts. The trick is knowing how to read them that way. In this episode of Crash Course Latin American Literature, we make room for the ways that our homes can represent who we are. youtu.be/_cjphE8S_Kk
Reposted by Crash Course
Some exciting news from our friends at @thecrashcourse.bsky.social! And don't worry — we'll have classroom resources to accompany this series sometime this year. 💚💚💚
Coming soon: Crash Course Scientific Thinking. This 7-epsiode miniseries in partnership with HHMI Biointeractive will help understand peer review, consensus, what makes sources reliable (or not), and what “correlation doesn’t equal causation” actually means. Watch the course preview 1/13!
January 7, 2026 at 2:52 PM
Some exciting news from our friends at @thecrashcourse.bsky.social! And don't worry — we'll have classroom resources to accompany this series sometime this year. 💚💚💚
Coming soon: Crash Course Scientific Thinking. This 7-epsiode miniseries in partnership with HHMI Biointeractive will help understand peer review, consensus, what makes sources reliable (or not), and what “correlation doesn’t equal causation” actually means. Watch the course preview 1/13!
January 6, 2026 at 5:38 PM
Coming soon: Crash Course Scientific Thinking. This 7-epsiode miniseries in partnership with HHMI Biointeractive will help understand peer review, consensus, what makes sources reliable (or not), and what “correlation doesn’t equal causation” actually means. Watch the course preview 1/13!
Where you are affects WHO you are. But what happens when you cross a border? In this episode of Crash Course Latin American Literature, we’ll explore how exile and border crossings have inspired Latin American authors to cross literary borders, too. youtu.be/8WDcUuz3TqI
Borders & Identity: Crash Course Latin American Literature #7
YouTube video by CrashCourse
youtu.be
December 18, 2025 at 5:43 PM
Where you are affects WHO you are. But what happens when you cross a border? In this episode of Crash Course Latin American Literature, we’ll explore how exile and border crossings have inspired Latin American authors to cross literary borders, too. youtu.be/8WDcUuz3TqI
Whether this is your first time filling out the Educator Survey or you want to share how things have changed since the last one, your input helps us make cool and useful stuff. The 2025 Educator Survey will be open until January 30. rebrand.ly/CCED-Survey-...
2025 Crash Course Survey
Take this survey powered by surveymonkey.com. Create your own surveys for free.
rebrand.ly
December 16, 2025 at 5:32 PM
Whether this is your first time filling out the Educator Survey or you want to share how things have changed since the last one, your input helps us make cool and useful stuff. The 2025 Educator Survey will be open until January 30. rebrand.ly/CCED-Survey-...
In last year’s educator survey, we learned a ton about what our educator viewers teach and how they teach it—but a lot can change in a year! If you’re an educator, we’re interested to hear what your day-to-day classroom looks like and how we can best support you.
December 16, 2025 at 5:32 PM
In last year’s educator survey, we learned a ton about what our educator viewers teach and how they teach it—but a lot can change in a year! If you’re an educator, we’re interested to hear what your day-to-day classroom looks like and how we can best support you.
Reposted by Crash Course
I CAN’T BELIEVE IT’S OVER! Thank you @thecrashcourse.bsky.social & @che-jim.com for teaching us all about Native American history over these past months. We are still here! And who better to solve environmental issues than the people who have been cultivating America for thousands of years?
Traditional Ecological Knowledge and Climate Change: Ep 24 of Crash Course Native American History
YouTube video by CrashCourse
youtu.be
December 2, 2025 at 8:12 PM
I CAN’T BELIEVE IT’S OVER! Thank you @thecrashcourse.bsky.social & @che-jim.com for teaching us all about Native American history over these past months. We are still here! And who better to solve environmental issues than the people who have been cultivating America for thousands of years?
Are you afraid of ghosts? In today's episode of Crash Course Latin American Literature, we pull back the curtain on the origins of Latin American horror, winding our way through (literal) ghost towns, haunted inns, and the eerie landscape of the Andes. Prepare to be spooked. youtu.be/1TmWZ5yIKx0
Horror in Latin American literature: Crash Course Latin American Literature #6
YouTube video by CrashCourse
youtu.be
December 11, 2025 at 5:24 PM
Are you afraid of ghosts? In today's episode of Crash Course Latin American Literature, we pull back the curtain on the origins of Latin American horror, winding our way through (literal) ghost towns, haunted inns, and the eerie landscape of the Andes. Prepare to be spooked. youtu.be/1TmWZ5yIKx0
Native people have been a part of Hollywood and wider American culture for centuries—but not always in the best ways. In this week's episode of Crash Course Native American History, we explore cultural appropriation, from redface to pretendians, and everything in between. youtu.be/7Tg2mCKP6tY
Hollywood, Pretendians, and Cultural Appropriation: Ep 23 of Crash Course Native American History
YouTube video by CrashCourse
youtu.be
November 25, 2025 at 5:33 PM
Native people have been a part of Hollywood and wider American culture for centuries—but not always in the best ways. In this week's episode of Crash Course Native American History, we explore cultural appropriation, from redface to pretendians, and everything in between. youtu.be/7Tg2mCKP6tY
This holiday season show your love for Crash Course with this limited-edition logo design hand-drawn by Crash Course lecture host and cult language expert Amanda Montell!
Only available until December 31, and we recommend ordering by 12/8 for delivery by 12/25.
complexly.store/products/ama...
Only available until December 31, and we recommend ordering by 12/8 for delivery by 12/25.
complexly.store/products/ama...
Crash Course Handmade Logo Shirt
Only available until December 31st! Crash Course handmade logo drawn by Amanda Montell These handmade logo shirts celebrate the humans who make Complexly videos and the joy of things made by hand, not...
complexly.store
November 21, 2025 at 5:57 PM
This holiday season show your love for Crash Course with this limited-edition logo design hand-drawn by Crash Course lecture host and cult language expert Amanda Montell!
Only available until December 31, and we recommend ordering by 12/8 for delivery by 12/25.
complexly.store/products/ama...
Only available until December 31, and we recommend ordering by 12/8 for delivery by 12/25.
complexly.store/products/ama...
These books offer something different from an officially sanctioned, singular story. They give us multiple perspectives, critiques, and glimpses behind the scenes into people’s everyday lives.
November 20, 2025 at 5:19 PM
These books offer something different from an officially sanctioned, singular story. They give us multiple perspectives, critiques, and glimpses behind the scenes into people’s everyday lives.
The countries of Latin America are no strangers to authoritarianism. Strongmen, tyrants & dictators have marked the region’s history & literature for hundreds of years. So much so that a whole genre distinct to Latin American literature emerged around it: la novela del dictador. youtu.be/Nh4I1hMvubU
Tyrants, Dictators, & Strongmen: Crash Course Latin American Literature #4
YouTube video by CrashCourse
youtu.be
November 20, 2025 at 5:19 PM
The countries of Latin America are no strangers to authoritarianism. Strongmen, tyrants & dictators have marked the region’s history & literature for hundreds of years. So much so that a whole genre distinct to Latin American literature emerged around it: la novela del dictador. youtu.be/Nh4I1hMvubU
What even *is* A.I.? And how did we get here? In the first episode of Crash Course Futures of A.I. we're thinking carefully about where this technology has been, what it can do, and where it’s going. youtu.be/UFJQV5Jb0pY
The History of AI Explained: Crash Course Futures of AI #1
YouTube video by CrashCourse
youtu.be
November 19, 2025 at 5:25 PM
What even *is* A.I.? And how did we get here? In the first episode of Crash Course Futures of A.I. we're thinking carefully about where this technology has been, what it can do, and where it’s going. youtu.be/UFJQV5Jb0pY
The preview of Crash Course: Futures of AI is out now! Our host Kousha Navidar is here to guide you through the ins & outs of our potential AI futures, and what we can do now to ensure we end up with a good one youtu.be/0Y3ekwHfq5g
Come back tomorrow for episode 1 where we'll ask "What even is AI?"
Come back tomorrow for episode 1 where we'll ask "What even is AI?"
Crash Course Preview: What Are the Possible Futures of AI?
YouTube video by CrashCourse
youtu.be
November 18, 2025 at 5:23 PM
The preview of Crash Course: Futures of AI is out now! Our host Kousha Navidar is here to guide you through the ins & outs of our potential AI futures, and what we can do now to ensure we end up with a good one youtu.be/0Y3ekwHfq5g
Come back tomorrow for episode 1 where we'll ask "What even is AI?"
Come back tomorrow for episode 1 where we'll ask "What even is AI?"
How does a Crash Course video go from an idea to a fun-ified piece of writing? We're pulling back the curtain on our process with Editorial Director Meghan Modafferi & Script Editor Annie Fillenwarth. Join our livestream TODAY at 10:30 am PT on our channel: youtube.com/crashcourse
November 17, 2025 at 5:01 PM
How does a Crash Course video go from an idea to a fun-ified piece of writing? We're pulling back the curtain on our process with Editorial Director Meghan Modafferi & Script Editor Annie Fillenwarth. Join our livestream TODAY at 10:30 am PT on our channel: youtube.com/crashcourse