How is the "tree swing" analogy used in education?

Maybe you can an answer in the following post:
https://www.askmehelpdesk.com/art/jules-pfeiffer-tire-swing-6195.html

I have included this link, only for the tree swing picture:
Funny Pictures - Work Related - Page 1 (http://misterharold.net/joker/src/jkpxwk01.htm)