A Danish market found an interesting way to limit hoarding of hand sanitizer. How much are these costs in your currency? What is the unit price on these bottles? By how much (what percent) was the price increased? Is this…

# Tag: HS

## Weird and spooky puzzles for April Fool’s Day

## Pascal coloring and modular math

## Some of our activities that are good for at-home learning

## Celebrate Saint Patrick’s Day (3 activities)

## The R-naught number of the coronavirus

## It’s time to gear up for Pi Day

8 activities to help celebrate π in your school and in your math class. Activities that demonstrate how π was derived; visually show why π makes sense; show a surprising place where π is used; increase students ability to measure and long divide; applauds the talent of people who can memorize large strings of numbers; and lets students just have fun.