The Candle Problem

When I first saw the picture in last class, I thought the answer was attaching the pins on the wall at the corner and making the base by matches. But I realized that it was too hard to make it. At home, I could not find the answer...and later, I just solved it! I should atteach the box an the wall. This is the answer!

And I think reward motivates people more.However, it depends on people. If someone does something interesting, it could be sutisfying. For me, I like fixing someone's cloth and things which are broken, because I like sewing. It is my pleasure. But this is not the same for someone else.I think the way of thinking is important.