Category: Ratio and Proportion

Valentine’s Day and the Lunar New Year

Which 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. 6.RP.2, 6.RP.3, 7.RP.2 Sweetheart Candies – unit rate and ratio activity using those little candy…

Mardi Gras – Fat Tuesday

Tuesday, February 13, 2018, will be the day before Ash Wednesday and the start of the season of Lent.  Mardi Gras is a last hoorah and is celebrated throughout the world with feasting, partying, and general indulgence. In New Orleans…

Winter Olympics, PyeongChang: February 9 – 25

Scoring 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…

Super Bowl, Groundhog Day, and football activities

Greasing light poles – How much Crisco are the Philadelphia police using to grease their light poles to discourage climbers? 6.EE.A, 6.G.A, 7.G.B, 8.G, MP5 Typical Super Bowl scores – Students reflect on the mean, median, and mode losing scores, winning scores,…

How many wings did the Bills send the Bengals?

On December 31st, 2017, the Cincinnati Bengals beat the Baltimore Ravens. The Ravens’ loss clinched the Buffalo Bills’ rise to the AFC playoffs.  The Bills sent a thank-you gift of Duff’s famous chicken wings and sides to the Bengals. Seems…

Cost of hosting Olympic games

Clicking on this image will show it larger in a new window. Hosting the Olympics sure does cost a lot. Why is that? How much money is $5 billion dollars? What is a cost overrun? Why would a country want…

The Olympic Torch trip in South Korea

On October 24, 2017, the Olympic flame was captured on Mount Olympus, Greece. (Lighting the Olympic Torch). That flame lit one of this year’s Olympic Torches and the Torch relay was begun on its way to the opening Winter Olympic…

Is this promo a good deal?

McDonald’s was offering an “Arch Card” special deal. If you bought an Arch Card for $100 you were entitled to a free BigMac or EggMcMuffin every week for a full year. The card was only offered at some McDonald’s restaurants…

Martin Luther King, Jr. activities

Timelines for the life and work of Martin Luther King Jr. – Students create one of two timelines about Martin Luther King Jr’s life or the efforts in America to create a racial balance in the U.S. 3.MD, 4.MD, 5.MD, 6.RP, 6.G,…

Days are getting longer

What’s your guess?  How fast are the number of daylight hours changing each day?  Will the changes be dramatic or subtle? Students make guesses; compute how long, on average, the change in daylight hours should be; play with a cool…

Wind chill

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…

Earth’s perihelion

On Wednesday, January 3rd, 2018, Earth will be as close as it gets to the Sun during its orbit. Shouldn’t that make this the warmest time of the year? In this activity students become familiar with the terms perihelion and aphelion as they calculate…

New Year’s Eve ball drop

On Saturday evening, December 31st, 2017 at 12:59 pm, much of the world will be watching the iconic Times Square Tower’s New Year’s Eve ball drop 141 feet to the roof of the One Times Square Building in Manhattan, NY.  This…

Winter holiday activities (13 ideas!)

Do I have enough wrapping paper? – Students estimate the size of a gift and decide if the given wrapping paper is going to be enough.  Finally they try to create a rule for determining enough wrapping paper from a present’s…

The Star Wars phenomena continues

The Last Jedi (most recent Star Wars film) will open this weekend.  How much did it cost to make?  How much will it gross? Is the Star Wars phenomena a guarantee for success?  How would you compare these movies? We’ve…