A face mask designed by a mathepreneur that has a math question printed on it, which aims at reducing innumeracy among its wearers during this pandemic crisis—when both safety and numeracy are achieved in a profitable way.
At $1 per MathMask™, or at $10 a dozen, these “smart masks” are expected to be popular gift items among both pro- and anti-Trump evangelicals this Christmas.
by MathPlus November 3, 2020