Brain Teaser from the Past

in STEMGeeks3 months ago (edited)

         Math class was one of my better liked times in school. It was one of those things that felt consistent and sometimes fun. Of course, that's before I attended more science classes in university. As I dove into my major further, I drifted further and further away from the M in STEM.

         But, there were still great memories from back in the days. For example, I remembered this little trick my sixth grade math teacher showed me and my peers. There was a piece of construction paper taped to the desk. It looked something like this.

         Beside it, at the time, was a short instruction challenging us to figure out how it worked. We were not to move the paper. The teacher told us that she only used one piece of paper to create the spectacle in front of us. So, for extra credit, she asked us to recreate the piece within a week.

         My peers were collaborating and trying to figure out how to solve the puzzle. A lot of us involved our parents to join in on the brain teaser. After a few days, I did figure it out with some friends.

         Turned out, all you needed were three cuts and then twist the paper around. Then, you'd have the optical illusion of two cut out rectangles.

         While this was not a numbers exercise, it did involve some spatial relation. It wasn't rocket science, but it left an impression on me as I remember it even after all these years. And, I also remember the feelings I had back in those days. I was happy to be learning.

         Learning can be exciting. It's best when it inspires the mind.

Posted with STEMGeeks


nice trick dear; haven't tried it. wil be a good trick to do with my kids and see if we really get to see the optical illusion of two cut-out rectangles.. And absolutely learning is fun. cheers

 3 months ago 

They might like it.

Very cool. I knew it had something to do with flipping the paper around the way you wouldn't think it should go. I just saw a study the other day where they are trying to see if dogs can understand optical illusions. It was interesting stuff.

 3 months ago 

So, do dogs understand optical illusions?

It was complicated, but yes, it would appear that at least on some level they do :)

Reminds me of an old puzzle I encountered while reading a novel. The square was divided into 16 squares and each row, column, and diagonal lines all had the same values when added up. No number from 1 to 16 must repeat. I spoiled myself the answer on the next page but it made me interested in creating similar puzzles for icebreakers. You cna recreate the puzzle from this comment just to kill time. :)

 3 months ago 

Unfortunately, time is in short supply most of the times.

Bang, I did it again... I just rehived your post!
Week 39 of my contest just can now check the winners of the previous week!