Scratch Not To Be Sniffed At!
Written by Lucy Black   
Monday, 24 May 2010

How do you start to teach children how to program? One possibility is Scratch, a language designed to get very young children into programming. Last Saturday (22 May) was Scratch day - so what's it all about?

Banner

 

Scratch is a computer language designed by the MIT Media Lab, where Seymour Papert and Marvin Minsky did their ground breaking work, and first released in 2007.

scratchday

The language and its  environment are free to download and distribute and works under Windows, Mac OS X or Linux (specifically Ubuntu). If you have ever used or played with a Lego Mindstorms kit then you will recognised the approach to the problem of making programming easier because Mindstorms' language was a forerunner of Scratch. There is also an hardware device that extends Scratch into the world of embedded programming - PicoBoard.  You can even use Scratch with the Lego WeDo Robotics kits.

picob

Scratch is a visual programming language -  a real visual programming language, nothing to do with Visual Studio or any of Microsoft's uses of the term. You build a program by manipulating programing blocks on the screen. You "wire" the blocks up by placing them together and customise what they do by entering values into slots. Blocks have different colors and shapes and only fit together in fairly obvious ways thus reducing the syntax and grammar of the language to a visual metaphor - which is geek speak for "if the blocks don't fit then it's not meant to be". Programs are simply stacks of customized blocks.

 

scratch14

The basic environment is inherently multi-threaded with different objects communicating by message passing - which is of course a natural environment for robotics. There are looping and conditional blocks but it really is an event-driven system. 

As well as good documentation and books to get the beginner started, there is also an active community. Scratch programs are uploaded directly to the website and users can collaborate and interact as they learn. There are also design studio challenges to stimulate the creation of new projects. At the current moment the website is showing 1,061,687 projects, including many new installations of classic games which run in a browser window. Users can also post and swap sprites for use in other projects.

 

scratchcat

It is difficult to understand Scratch unless you have tried a similar visual language like Lego Mindstorms, but you can easily make up for the lack of a rounded childhood by downloading the system and trying it out. Just don't expect to be writing any code.

More info and downloads from:http://scratch.mit.edu/

Related article:

Hello World! Computer Programming for Kids and Other Beginners

A Programmer's Guide to Scratch 2

To be informed about new articles on I Programmer, sign up for our weekly newsletter, subscribe to the RSS feed and follow us on Twitter, Facebook or Linkedin.

 

Banner


Call For Code 2024 Focuses On Generative AI
01/03/2024

This year's Call for Code challenge has been launched with a theme of the use of generative AI technology for solutions that aim to improve equitable access to resources and opportunities for historic [ ... ]



Bun Shell Released
29/02/2024

The developers of the Bun JavaScript runtime have released Bun Shell, a new experimental embedded language and interpreter in Bun that lets you run cross-platform shell scripts in JavaScript and TypeS [ ... ]


More News

raspberry pi books

 

Comments




or email your comment to: comments@i-programmer.info

 

Last Updated ( Wednesday, 18 May 2022 )