Building a simple motor:

In Isai Ambalam school we showed Arvind gupta video for the  4^th and 5^th graders. They saw the video and noted down the materials that are needed to build a simple motor. First day they built and it didn’t rotate. They were sad and went back to their class. Second day they watched the video again and they came to know their mistake. They corrected their mistake and the it rotated. Siva and me explained the concept why it is rotating. From my experience when I built it for the first time it didn’t rotate and I didn’t know what was the mistake. Then It rotated. I learnt that I should never give up easily on what I work.