Here are the rarely updated resources, links, and random musings of a Mathematics and STEM teacher.

Last yr I posted a little-known result in basic statistics:
Mean (ΞΌ) and median (m) are at most one standard deviation (Οƒ) apart:

|ΞΌβˆ’m| ≀ Οƒ

I was a TA in MIT’s legendary 6.041/6.431 “Probabilistic Systems Analysis” when we gave this as a homework problem back in 1991:


My cross country team’s awards night is tonight. One of the captains has made 70 “Paper Plate” awards for every student and I am so excited to hand them out. How rad is this?

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