There’s a lot of misinformation out there about the cost to consumers of CFL and LED bulbs and the savings in energy and money that could be realized. Let your students “do the math” and realize some of the profit…

Sunday, April 22nd, 2018, is Earth Day. Use this activity to demonstrate the various mappings of our 3-d Earth to a 2-d piece of paper. Students compare maps with this famous photo and check to see which characteristics are maintained and…

Dunkin Donuts is promoting variety in their mixtures of hot chocolate. Let your students try to figure out how many ways they can create their drink as they calculate the number of combinations possible in our story of stopping for…

Let your students develop their own ideas about compounded percent change while they have the opportunity to speak about the upcoming Academy Awards show. Worldwide box office income is compared for the top ten grossing movies of all time. Is…

Updated for 2018!The scoring rubric for each of the Olympic events is intended to eliminate the possibility of scoring bias from the judges. Let your students learn more about the scoring of one event and decide whether it seems fair…

It’s 4th down. Should you go for it? Punt? Kick a field goal? Instead of using your gut, use research, data and math to make the right call … The graph below gives the recommended option for 4th down situations for…

How were your holidays? Your school vacation? Mine was good. I surprised my family with this HDTV, which I wrapped and hung on our wall. The size of an HDTV is determined by the length of its diagonal. What size…

At the Toys R Us store, I saw an amazing LEGO creation. He was a life-sized LEGO fireman with a walkie-talkie, an oxygen tank and even an oxygen tank gauge. He must have taken a long time to build. Let…

My friend from Boston created this list of cities that had won championships (in the last 10 years) in the four major national leagues. What does this list make you wonder? Which city has the best teams? How do you…

Click on this picture to see it larger in a new window. We all know that a Super Bowl commercial costs a ton of money. What about a World Series commercial? If you were representing a company that wanted to…

François Englert and Peter W. Higgs François Englert and Peter W. Higgs were jointly awarded the Nobel Prize in Physics 2013 for the theory of how particles acquire mass. In 1964, they proposed the theory independently of each other. In 2012,…

Tom Lehrer is a singer, songwriter, satirist, pianist and mathematician who has written some wonderful songs. In 1959 he wrote a song called “New math”. At that time, much of mathematics teaching was reoriented. Parents of elementary school aged children…

The U.S. Open is about to get underway in New York City. It is possibly the biggest tennis tournament in the world. We’ve updated our numbers and focused on the prize money. As students ponder the amounts for various wins,…

Clicking on the image will show it larger. I’m not very good at understanding how large my device capacities are and how big the files that I want to download are in comparison. I decided to practice with the numbers…