We do not how motor works, do not know why things move forward – what all we do is just make and make the same thing in different forms. We are in the process of making our own ‘theories’ – not in a hurry to know what is the establish views about circular movements and sinking.
Two kids made water boat with sole of a slipper (our pet dog chewed the slipper). One child used two bottles on either side, other one did not. One sank, other one kept on moving in circles … in some ways both failed! They worked, gave up and then tried another design, created their own theories, debated, discussed … hmmm do you call this learning?
Watch vidoe for the joy of doing.