Scratch is a programming language used to create interactive stories, games, and animations that can be shared online. It helps students think creatively and collaboratively. The Hour of Code is a global movement to introduce students to computer science through one-hour tutorials available in over 30 languages. During Computer Science Education Week in December, any student or teacher can organize an Hour of Code event to demystify coding. The document provides instructions on getting started with Scratch by creating an account and working on a virtual pet project.