Programación en scrach

Most people view computer programming as a tedious, specialized activity, accessible only to those with advanced technical training. And, indeed, traditional programming languages like Java and C++are very difficult for most people to learn. Scratch, a new graphical programming language, aims to change that. Scratch takes advantage of advances in computing power and interface design to makeprogramming more engaging and accessible for children, teens, and others who are learning to program. Key features of Scratch include: • Building-block programming. To create programs in Scratch, yousimply snap graphical blocks together into stacks. The blocks are designed to fit together only in ways that make syntactic sense, so there are no syntax errors. Different data types have differentshapes, eliminating type mismatches. You can make changes to stacks even as programs are running, so it is easy to experiment with new ideas incrementally and iteratively.

• Sharing and collaboration.The Scratch website provides inspiration and audience: you can try out other people’s projects, reuse and adapt their images and scripts, and post your own projects. The ultimate goal is to develop ashared community and culture around Scratch.

Scratch offers a low floor (easy to get started), high ceiling (ability to create complex projects), and wide walls (support for a wide diversity ofprojects). In developing Scratch, we put high priority on simplicity, sometimes even sacrificing functionality for understandability. As students work on Scratch projects, they have opportunities to learnimportant computational concepts such as iteration, conditionals, variables, data types, events, and processes. Scratch has been used to introduce these concepts to students of many different ages,from elementary school through college. Some students transition to traditional text-based languages after getting introduced to programming with Scratch. Scratch is built on top of the Squeak...