Number Sense

Have a heart

Clicking on the image above will show the heart larger in a new window. Canstruction® is an event hosted in more than 150 countries throughout the world to demonstrate “innovation, hunger relief  and collaboration”.  Canstruction has raised more than 21…

Where have all the flowers … come from?

Tuesday, February 14, 2017, is Valentine’s Day.  Start the “love hoopla” with this graphic on where all of the flowers come from.  This is part of the graphic from http://visual.ly/valentines-day-facts What fraction of these roses are shaded red?  The red ones…

Scoring Olympic ski jumping

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.…

Which TV is the Best Deal?

Check out the TVs.  All have essentially the same features, only the size of the screen varies.  Which TV do you think is the best deal?Explore area and unit pricing to determine which HDTV offers the most screen area for…

The winter Olympics torch trip

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…

4th down

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…

HDTV Surprise!

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…

Moneymaking holiday movies

Just updated! Which movie do you think is the highest grossing holiday movie of all time (click on the movie to see its trailer)? How the Grinch Stole Christmas,  Elf,  The Santa Clause  or  The Polar Express Students analyze holiday movie…

Amazing LEGO Fireman

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…

Best Sports City

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…

Asian giant hornets

Vespa mandarinia In AnKang, China in Shaanxi province, giant hornets have injured and killed scores of people.  Government officials are now trying to eradicate these insect’s hives and have destroyed about  4,500 nests so far.  The Asian giant hornet is the…

~~~ Scary costumes ~~~

Every year Americans spend lots of money on Halloween and Halloween costumes. Use our updated data on Halloween spending in America to engage your students in an analysis of the ratios of population, participation, and money spent in honor of October…

Nobel prize in physics 2013

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,…