One powerful feature of the Raspberry Pi is the row of GPIO pins along the top edge of the board. GPIO stands for General-Purpose Input/Output. These pins are a physical interface between the Pi and the outside world. They are a way in which the Raspberry Pi can control and monitor the outside world by being connected to electronic circuits. The Pi is able to control LEDs, turning them on or off, or motors, or many other things. It is also able to detect whether a switch has been pressed, or temperature, or light. We refer to this as physical computing.
Scratch: Scratch is a programming which helps kids interact with the computer interface and create their own stories, games and animations. We teach school children aged 10 – 15 years, all about Scratch. This helps them develop their creative ability, reason in a systematic way, and collaborate with team members to execute a project.