CNN — Class is in session with Ed Sheeran. The singer and songwriter has announced a North American tour, called "+ - = ÷ x," pronounced "The Mathematics Tour." Sheeran released a minute-long teaser ...
One of my first vivid memories of math is of timed tests. I still remember how visceral my panic felt–sweaty palms, heart pounding–as I scrambled to recall facts before the clock ran out. You might ...
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