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 or not.…

Olympic torches are being carried to the deepest lake, the highest European mountain, into space, and around the host country to bring the Olympic flame to Sochi on February 7, 2014. In this activity, students can witness the Torchs’ trip…

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…

Carbon dioxide and methane are our two most prevalent human-contributed greenhouse gases. This holstein cow is one of many huge contributors to our methane production. Let students calculate percentages of greenhouse gas production from cars, cows, and people. We’ve got…

Instead of asking students to just believe what you’ve said, why not ask them to verify your assertions? Students plot the points of the stream, perhaps map them with an equation generated by Excel or their calculator, and then use…

Brian has introduced systems of equations with easy, motivating problems that deal with the cost of stadium purchases for food or souvenirs. These systems of equations puzzles are so intuitive that very little support will be needed