Should you buy a hybrid or an electric car to save money and the planet? Students create equations for finding the break-even points of these vehicles by mileage and years of ownership. They then work with systems of equations to…

Try one of these 4 activities on April Fools Day. Where did that extra dollar go? Mystical Mathematical Mind Reader; perplexing missing square in the triangle; and Robert Kaplinsky’s foil prank.

Wikipedia had this schedule of events. We think that there is a lot of information missing and apparent in this graphic. What can you tell and what would you like to know?

Students work with the geodesic icosahedron of the Time’s Square Ball by slicing an icosahedron. How are properties valued according to their distance from GO in the game of Monopoly? Games with dice; puzzles; probabilities; and more.

Egad, Hanukkah begins this year on Sunday evening, November 28th. I think it was in December last year. Why isn’t it always on the same date? Students look at the Hebrew calendar and appreciate the incredible mathematics involved in creating a…

Here are two very different maps about where Veterans live in the U.S. and which states have the largest density of Veterans citizens. What do these two maps make you wonder or realize? How can you explain their comparison?

Updated for 2021! Tuesday, September 22, 2021 at 19:21 UTC (which is the same as 3:21 am EST), will be the Autumnal Equinox. It is the time of year when the imaginary plane that passes through the Earth’s Equator would also…

In the board game, Monopoly, does a property’s distance from GO correlate to its rent when you land on it? Using Brian’s spread sheet (list of properties, distance from GO, rent and rent with properties), students create scatter plots. They…

What’s your guess? How fast are the number of daylight hours changing each day? Are the changes dramatic or subtle? Students make guesses; compute how long, on average, the change in daylight hours should be; and finally understand the variability in our year of daylight hours.

Brian and his son were doing some shopping when he found this shoe. Egad! Could that be someone’s real shoe? In this activity student need to use a shoe size chart, patterns or linear modeling to try to figure out…

In December soccer teams with the strongest world rankings were chosen to play in the once-every-4-years World Cup. The World Cup competition has just begun and will continue through July 15th. The team rankings are calculated in a pretty complex…

Whether you or one of your siblings is going off to college next fall, it is useful to know how much colleges cost. Not going to college this fall? No worries, we can use the information on college costs in…

In order to cook Paella (a delicious Spanish rice dish) I needed to buy Saffron spice. It was hugely expensive. So, I’ve decided to start a business of growing saffron and becoming immensely wealthy.