I loved engineering and physics when I was in school. This is a simple machine to teach my son leverage mechanism and math while he is learning multiplication. After he got the concept he started saying “10 divided by 3 equals 3 with remainder of 1”. I said”no no no this mechanism doesn't” Well, he proved me wrong. He plugged it in and it worked!!! Brilliant.
Rating:
[5 of 5 Stars!]