# Tag: HS

## Hoarding stopped!

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…

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

This day is known for pranks and puzzles.   Try one of these 4 activities on April Fools Day. Ask students to analyze where I made my mistake        PerplexingProblem.pdf For members we have solutions. PerplexingProblem-solution.pdf      …

## Pascal coloring and modular math

Clock math, 1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7… is modular math. Let your students learn about the usefulness of modular math as they color and explore Pascal’s Triangle. Very pretty math!

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

We’ve got hundreds of great activities that demonstrate how math happens all around us.  Let your student choose an activity that interests him/her and enjoy the discoveries.

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

Finding 4-leaf clovers! Shamrocks in Ireland are actually be 3-leafed white clover, trifolium repens. If you are lucky, you can sometimes find a four-leafed clover.  How rare is finding a 4-leafed clover?  How hard do you have to look?  What…

## The R-naught number of the coronavirus

We’re still learning about the coronavirus and its ability to and tendencies toward infection and spread. Students learn about the R-naught number which is a measure of infectious growth. Real-world mathematics!

## 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.

## Which gasoline is the cheapest?

A comparison of gasoline in Greece, priced at Euros per liter, and gas in Massachusetts at dollars per gallon. Price and liquid volume conversion using unit fractions.

## How many delegates does each state get to send to the Democratic Convention?

Students reason about the meaning of this formula. They evaluate the formula for South Dakota and their state of choice to understand the weight of each state’s power in choosing the Democratic nominee.

## Gonna be a Leap Year

This year we will add the 29th of February to our year?  Why do we do that?  How can you tell?  What if we didn’t add a day every 4 years? Calendar math and flow charts.

## Valentine’s Day + NBA All-Star Voting + Presidents’ Day

14 Activities to choose from for Presidents’ Day, NBA All-Star voting, and Valentine’s Day. What a week!

## Movies and the upcoming Oscars

Compounded percent change; central tendencies; the weight of Rapunzel’s 70 feet of hair; Godzilla’s height by comparison; how to measure the profitability of a movie series; most appropriate graphical representations; line of best fit; and more …

## Super Bowl and Ground Hog day (9 activities)

+ Even more NFL math! Super Bowl ads and scientific notation  Updated! – On Monday, when the Super Bowl is over and all of the ads have been seen, use this scientific notation activity to involve math students in the talk of…

## Typical Super Bowl Scores

Updated! In this activity students study historical Super Bowl data to reflect on average (mean, median, and mode), losing scores, winning scores, and range of scores. They are asked to judge which of these central measurements seem the most meaningful and explain…