build this robot in Your classroom: http://www.robocamp.eu/ exercise available in English, Russian, Spanish and Polish
Sorting Machine is a prototype of a machine, that can mechanically separate colorfull bricks into four groups. A tilting loader slides bricks one by one under the colour sensor, that decides to which group the brick should go. After that, the brick is thrown on a revolving slide that directs the brick to the respective container. The robot says the name of the detected colour aloud, and stops working when every brick has been sorted.
Programming the Sorting machine is a great opportunity to talk about the role of automation in modern world.