Overview
The first version of Scratch was developed in 2003 by the Lifelong Kindergarten group, led by Mitchel Resnick, at the MIT Media Lab. Scratch allows for constructing and testing through mostly tactile process because the creators' first priority was to make it as easily learned by children as possible.
The tactile and visual GUI of Scratch allows children to explore by dragging-and-dropping blocks of conditions (with parameters) and of consequences ("actions") onto selected agents (called "sprites") and backgrounds (called "stages") how interactive animations, presentations, stories, and simple games can be playfully and programmatically created. To include children who are not able to write syntactically correct structures – nor read them, yet – visually grouped blocks can be tested by clicking on them and they can be easily replaced with different ones in order to re-mix, modify, and create new versions of projects.
Read more about this topic: Scratch (programming Language)