Huge Key Lime pie

On a cold and snowy day in Boston, two chefs created a huge Key Lime pie to remind the frozen people of the Northeast how tasty and warm the Keys of Florida are.

After you show this movie to your students, ask them what they wonder about this huge pie and what they would like to figure out.

Supposedly the huge pie served 1,000 commuters but our figuring suggests something else. This is a Yummy activity about multiples, proportions, volume and reasoning.

Is this a leap year?

FEB29

Will we have a 29th of February this year?  How can you tell?

Students work with a flow chart to deduce what years are going to be leap years.  They learn about the exact measurement of a solar year and how our Gregorian calendar needs to be adjusted to align our calendar with the sun's rotation.

Windchill

BlizzardJorge

My dog, Jorge, wearing his coat on a cold and windy day.

When the weather person talks about wind chill did you ever wonder how they calculate that number?  In this activity students use the National Weather System chart to gauge wind chill, examine the patterns that correlate increasing wind and/or decreasing temperatures, use wind chill numbers to estimate possible wind and temperature factors, and generally become familiar with this sort of interpolation and calculation.  Also check out windchill calculator, which you can use to quickly find the windchill for a given temperature and wind speed.  

Movies and the upcoming Oscars

oscar

We've got 10 Oscar and movie activities.

Highest Grossing Movies - 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 total gross the most appropriate way to judge the popularity of a movie?  How does inflation and increasing ticket prices come into play? Inflation rates are used to let students calculate how the money of 1997 compares to the money of 2013. Students see for themselves what exponential growth means.

Presidents Day, Mardi Gras, and Chinese New Year

1pres1President's Pay - Monday, February 16th is Presidents Day. Students learn a little about the holiday as they use the Consumer Price Index (CPI) to calculate "today's value" of the only 6 salaries that Presidents have ever earned ... relative value of salaries, step graphs and more.

MardiGras-masksMardi Gras - Tuesday, February 17, 2015, will be the day before Ash Wednesday and the start of the season of Lent.  Mardi Gras is the last hoorah and is celebrated throughout the world with feasting, partying, and general indulgence.  In New Orleans revelers throw and collect purple, green, and gold beads. Students get a chance to examine the monetary and environmental cost of this bead exuberance with our unit pricing and recycling activity.

Valentine’s activities

sweethearts-candyWhich Sweet Heart candies are the best deal? - Students decide which quantity of Sweet Heart candies is the best deal.  Ratio tables, unit ratios, devising convincing arguments.

A parametric heart ... with loveExcelParametricHeart - Students use unit triangles and manually calculate sine and cosine of π/2, π, 3π/2, and 2π as they try to graph this great-looking, curvy heart using parametric equations.  We also have them create it using Excel, on a graphing calculator and with online graphing tools.