Category: Number Sense

Olympic Medal Table

Check out the two images of the 2008 summer Olympic medal counts.  What do you notice? How are the Olympic medal counts and standings determined? The Olympic Games are competitions between athletes in individual or team events and are not…

August meteor showers

Conditions will be favorable for excellent views of the Perseids meteor showers in early to mid-August.  Let students read charts, analyze data, work with percent of moon visibility at each phase, and understand apparent magnitude in the night sky with…

Monster cake

Jodie Berman, a high school math teacher in Chicago, loves mathematics and loves to cook.  We’ve created an activity based on her Monster Cake (composed of everything that Cookie Monster loves) from her blog Binomial Baker.   Students find the surface…

Pokémon GO! I should have invested

Pokémon GO is all the rage.  News reports show people glued to their smart phones as they travel to nearby landmarks where virtual critters appear and need to be caught by throwing Pokémon Balls with a phone swipe. Well, at least…

10 Million nematodes

Grubs are killing my grass.  I don’t want to put poison into the ground.  What can I do? There are tiny roundworms called beneficial nematodes. They can kill destructive soil pests in your garden and lawn.  They are tiny worms that…

How high can a gymnastic score be?

front row: Laurie Hernandez, MyKayla Skinner, Simone Biles, Ragan Smith back row: Ashton Locklear, Aly Raisman, Alyssa Baumann, Gabby Douglas MyKayla Skinner, Ragan Smith and Ashton Locklear were named as alternates. Gymnasts have just successfully competed in San Jose, California…

Coloring with Pascal’s Triangle … Binomial expansion

Working with Pascal’s Triangle offers some interesting and varied mathematics.  We love to color and the end result is pretty!  Here is the first of 3 activities using Pascal’s coloring. This Binomial expansion activity could be used alone or coupled…

Which is most expensive?

Who knew that creams for your face could be so expensive!  I’m going to have to rethink what to buy for my mom.  Which of these high priced cremes is most expensive? In this activity students observe some prices of…

Games with dice

Time to let students become naturally curious about probability.  In this activity students work in teams to record the frequency of rolled dice combinations. They observe the difference between experimental and theoretical outcomes and consider how sample size affects how the…

Longest NHL overtime games in history

Game one of the 2013 Stanley Cup between the Bruins and Blackhawks went into 3 overtimes.  People stayed up way too late to watch the conclusion.  The teams played 112 minutes and eight seconds of game time.  The game went…

Flag Art

A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday.  In this activity students measure; create whole number ratios for the official U.S. flag; decide how our artistic flags will be different…

Pixar versus DreamWorks

Animated films are a billion dollar industry.  The two biggest producers of animated films are DreamWorks and Pixar.  The two have been going head to head for more than ten years now. So how do they stack up to each…