CS50's Introduction to Programming with Scratch

Start Your Programming Journey with Scratch

Before you learn syntax, learn computational thinking. Scratch teaches you to think in loops, conditionals, and sequences—the fundamental patterns of programming—by letting you drag blocks together visually.

The course is an intentional bridge: you'll discover what programming feels like (the satisfaction of automation, the frustration of bugs, the delight of algorithms working) before diving into text-based languages. By the end, you'll be ready for Python, JavaScript, or any language—because you've already internalized how programs are built.