We’re sorry! Course 1 has been retired. We recommend Course A or Pre-reader Express as a replacement.

Start with an Hour of AI, then explore self-paced courses on apps, games, and animations. Try App Lab, Game Lab, or Web Lab — and learn how AI works, real-world careers, and scholarships.

An introductory computer science course that empowers students to create authentic artifacts and engage with computer science as a medium for creativity, communication, problem solving, and fun.

Start with Course 1 for early readers. Students will create computer programs that will help them learn to collaborate with others, develop problem-solving skills, and persist through difficult...

I finished! Need help? Add a second move forward block to reach the sheep. Video. Minecraft - Introduction. No video? Show notes. Hit "Run" to try your program.

App Lab works best on a desktop or laptop computer with a mouse and keyboard. You may experience issues using this tool on your current device. Game Lab works best on a desktop or laptop computer …

In this groundbreaking, cinematic course taught by world-class instructors, you’ll learn about essential concepts in the Java programming language, and apply them as you analyze, write, and test real code.

Share your videos with friends, family, and the world

Hi! My name is Erin, and I'm a software engineer here at Code.org. I'm so excited, because I got to work on the tutorial that you're about to do! We call it "Hello World." "Hello World" is a famous phrase in …

Code.org Course 1 answers and solutions are available for all lessons and puzzles.