Pi (π) has been known for almost 4000 years—but even if we calculated the number of seconds in those 4000 years and calculated π to that number of places, we would still only be approximating its actual value. Here’s a brief history of finding π.
The ancient Babylonians calculated the area of a circle by taking 3 times the square of its radius, which gave a value of pi = 3. One Babylonian tablet (ca. 1900–1680 BC) indicates a value of 3.125 for π, which is a closer approximation.
The Rhind Papyrus (ca.1650 BC) gives us insight into the mathematics of ancient Egypt. The Egyptians calculated the area of a circle by a formula that gave the approximate value of 3.1605 for π.
The first calculation of π was done by Archimedes of Syracuse (287–212 BC), one of the greatest mathematicians of the ancient world.
See the wonderful advice on working towards eliminating math anxiety for your child. Best quote:
The article gives a list of reasons people have anxiety and a few suggestions how to overcome math anxiety. You might like to know writers have suggested that a young Albert Einstein was rubbish at mental arithmetic, a teachers even famously said he wouldn’t amount to anything! However with the help of his mother and a different style of teaching at a new school he was propelled towards his genius discoveries.
In our link for today the story from someone who kept her troubles with math a secret. Unfortunately our school system is such that this can go unnoticed. A major reason why Dyscalculia is not diagnosed more often. Here is how she explained getting through school without anyone noticing her math troubles:
The reason that I was never tested was that I passed all my classes with As and Bs. My parents figured that I just hated math. They assumed that I just needed to apply myself. Now the reason that I got good grades was that I copied everyone’s homework and was a great student. My test scores would give me away, but the teachers were always okay to bump up my grade or give me extra credit. I was in the honors classes track, so surely I was such a good student so eager to learn that I could not get a C grade or lower.
Read the story in the link for today where someone recall their youth that got majorly impacted by a learning disability. Best Quote:
After much hemming and hawing, I went and did a series of tests with trained doctors and teachers who told me that I had dyscalculia. Finally, I realized that my inability to not be able to perform in maths was not because I was dumb or didn’t pay attention. My brain couldn’t grasp these concepts, and it wasn’t my fault at all!