What lets C, Rust, and other languages achieve higher speeds than Python? CS50’s own Brian Yu explains. 

How do you escape tutorial hell? CS50’s own Carter Zenke bets it’s easier than it seems.

Learn why it’s worth investing in your own skills from CS50’s own Carter Zenke.

¡Hola, mundo! Estamos lanzando CS50x doblado al español. Las 12 clases, con temas que van desde Scratch hasta Estructuras de Datos, ya están disponibles totalmente dobladas al español. ¡Feliz aprendizaje!

cs50.ly/es, made possible with lingopal.ai.

Olá, mundo! Estamos empolgados em lançar o CS50x, dublado em português. Aprenda os fundamentos da ciência da computação, desde a programação em diferentes linguagens até a compreensão da inteligência artificial, e muito mais. 

cs50.ly/pt, made possible with lingopal.ai.

Join us on Friday, August 21, 2026 for Chapter 1 of a free, live, online lecture series (with Tom Crawford of Tom Rocks Maths!) that teaches all the math you need to know for introductory computer science. No prior programming or computer science experience required.

https://youtube.com/live/FtG7TWHf_ag

Join us today for Chapter 1 of a free, live, online lecture series introducing math for computer science with Tom Crawford of Tom Rocks Maths. 

Math for Introductory Computer Science aka Math50 with Tom Crawford is designed for anyone interested in useful math topics for an introductory computer science course. No prior programming or computer science experience required! 

https://youtube.com/live/FtG7TWHf_ag

Join us today for Chapters 2 and 3 of Math for Introductory Computer Science aka Math50 with Tom Crawford of Tom Rocks Maths.

Learn how a set is just a collection of objects, how objects move between sets, and how logical operators can be used to solve an Einstein Puzzle.

https://youtube.com/live/nKGIQx6OyvA | https://youtube.com/live/qTiv9dG04E0

Join us today for Chapter 4 of Math for Introductory Computer Science aka Math50 with Tom Crawford of Tom Rocks Maths.

Learn the math behind catching Pokémon. 

https://youtube.com/live/RSzH9A35Di8

Join us today for Chapter 5 of Math for Introductory Computer Science aka Math50 with Tom Crawford of Tom Rocks Maths.

Learn to use numbers on a graph to find buried treasure.

https://youtube.com/live/JVNYEAy_VC0

Join us today for Chapter 6 of Math for Introductory Computer Science aka Math50 with Tom Crawford of Tom Rocks Maths.

Learn how Fermi Estimation helps us determine the number of barrels Donkey Kong has thrown.

https://youtube.com/live/4MWK13PWgWY

Join us today for Chapter 7 of Math for Introductory Computer Science aka Math50 with Tom Crawford of Tom Rocks Maths.

Learn how quickly permutations can get out of control.

https://youtube.com/live/mOgpGT25T18

Join us today for Chapter 8 of Math for Introductory Computer Science aka Math50 with Tom Crawford of Tom Rocks Maths. 

Learn how math and probability turn the odds to your favor.

https://youtube.com/live/XOHX3NSLOp0

Join us today for Chapter 9 of Math for Introductory Computer Science aka Math50 with Tom Crawford of Tom Rocks Maths. 

Learn how to calculate Z-factors to determine which NBA team is the best of all time: the 1992-93 Chicago Bulls or 2015-16 Golden State Warriors.  

https://youtube.com/live/736zepheMY4