I read a paper and was inspired to give this advice to my son: "Keep your math muscles working."

[NH Ethylene]

2. As a Chemistry Teacher, I struggled with students' overreliance on technology constantly.

It seems to be established in society today that machines will do the math for us, so we don't need to. I had students who, when confronted with the need to solve the simplest arithmetic, literally 2 + 2, would pull out their calculator to do it for them.

More than once I have chided a class about their lack of effort involving math, saying that if they don't use their brains they will get Alzheimer's before me! (and I'm old)

I think of handing over our basic daily math tasks to a computer or a calculator or a cash register as giving away our intelligence.

Congrats on your son surpassing his dad. Yours was a job well done.