My high school trigonometry teacher was, by his own admission, “old school.” He didn’t allow us to use calculators. Ever. Instead, all decimals had to be divided by hand, all formulas known by memory, and all square roots worked out on paper. We were unlikely to walk around with calculators when we got older, he explained, and so we had to be able to work things out with only a pencil and our brain.
Oct 23, 2024 2:00 PM CDT
