The design process is very important for technology. It starts with a problem that needs to be solved... how can we make the world a better place? Ideas need to be planned, drawn, listed; inventions need to be assembled and tested; then you go around again and improve things for next time.
To explore engineering design, we use littleBits electronics modules. These electronic building blocks—switches, sensors, lights, buzzers, motors and more—let kids invent just about anything!
My favorite activity is the "Iron Inventor" challenge. Groups of 3-4 students all get the same selection of bits, and have to decide what to invent with them, and try to convince the other groups (and the judge!) that their invention is the best. It's always amazing to see the creative ideas they come up with. Anyone need an automated light-up electric toothbrush with a built-in mp3 player?