Hi kids!
On these pages I am going to explain you on how to use the arduino. The arduino is a pretty cool thing. You could say it's a computer, but that's not entirely correct. We call it a microcontroller instead. You can connect electronics to it, then upload code into the arduino and then it will behave as you want it. You probably have me or other kids seen working with makeymakey or with the raspberry PI. Those are other electronic devices where you can make cool stuff with.
Don't let the wires, code and electronics scare you. It's not hard at all if you do it step by step.
Good luck with the lessons!
Mr. Pieter